Home / 890,015.36-1,228,222.62-527,617.32

Finding the Fourth Proportional to 890,015.36, 1,228,222.62 and 527,617.32

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Solution

The fourth proportional to 890,015.36, 1,228,222.62 and 527,617.32 is: 728,112.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,015.36 : 1,228,222.62 = 527,617.32 : x
  2. Step 2: Convert to fraction form
    890,015.36/1,228,222.62 = 527,617.32/x
  3. Step 3: Cross multiply
    890,015.36x = 1,228,222.62 × 527,617.32
  4. Step 4: Simplify right side
    890,015.36x = 648,031,527,127.78
  5. Step 5: Solve for x
    x = 648,031,527,127.78/890,015.36
  6. Step 6: Final answer
    x = 728,112.75

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.