Home / 762,688.17-1,052,506.76-418,529.79

Finding the Fourth Proportional to 762,688.17, 1,052,506.76 and 418,529.79

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Solution

The fourth proportional to 762,688.17, 1,052,506.76 and 418,529.79 is: 577,569.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,688.17 : 1,052,506.76 = 418,529.79 : x
  2. Step 2: Convert to fraction form
    762,688.17/1,052,506.76 = 418,529.79/x
  3. Step 3: Cross multiply
    762,688.17x = 1,052,506.76 × 418,529.79
  4. Step 4: Simplify right side
    762,688.17x = 440,505,431,143.73
  5. Step 5: Solve for x
    x = 440,505,431,143.73/762,688.17
  6. Step 6: Final answer
    x = 577,569.51

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Double scale
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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.