Home / 917,359.70-1,376,039.55-243,439.70

Finding the Fourth Proportional to 917,359.70, 1,376,039.55 and 243,439.70

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Solution

The fourth proportional to 917,359.70, 1,376,039.55 and 243,439.70 is: 365,159.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,359.70 : 1,376,039.55 = 243,439.70 : x
  2. Step 2: Convert to fraction form
    917,359.70/1,376,039.55 = 243,439.70/x
  3. Step 3: Cross multiply
    917,359.70x = 1,376,039.55 × 243,439.70
  4. Step 4: Simplify right side
    917,359.70x = 334,982,655,240.14
  5. Step 5: Solve for x
    x = 334,982,655,240.14/917,359.70
  6. Step 6: Final answer
    x = 365,159.55

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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.