Home / 776,487.30-1,164,848.46-243,958.20

Finding the Fourth Proportional to 776,487.30, 1,164,848.46 and 243,958.20

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Solution

The fourth proportional to 776,487.30, 1,164,848.46 and 243,958.20 is: 365,974.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,487.30 : 1,164,848.46 = 243,958.20 : x
  2. Step 2: Convert to fraction form
    776,487.30/1,164,848.46 = 243,958.20/x
  3. Step 3: Cross multiply
    776,487.30x = 1,164,848.46 × 243,958.20
  4. Step 4: Simplify right side
    776,487.30x = 284,174,333,574.37
  5. Step 5: Solve for x
    x = 284,174,333,574.37/776,487.30
  6. Step 6: Final answer
    x = 365,974.22

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.