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Finding the Fourth Proportional to 707,349.68, 976,142.54 and 385,062.12

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Solution

The fourth proportional to 707,349.68, 976,142.54 and 385,062.12 is: 531,385.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,349.68 : 976,142.54 = 385,062.12 : x
  2. Step 2: Convert to fraction form
    707,349.68/976,142.54 = 385,062.12/x
  3. Step 3: Cross multiply
    707,349.68x = 976,142.54 × 385,062.12
  4. Step 4: Simplify right side
    707,349.68x = 375,875,516,837.24
  5. Step 5: Solve for x
    x = 375,875,516,837.24/707,349.68
  6. Step 6: Final answer
    x = 531,385.72

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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.