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Finding the Fourth Proportional to 508,715.07, 702,029.52 and 317,839.17

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Solution

The fourth proportional to 508,715.07, 702,029.52 and 317,839.17 is: 438,619.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,715.07 : 702,029.52 = 317,839.17 : x
  2. Step 2: Convert to fraction form
    508,715.07/702,029.52 = 317,839.17/x
  3. Step 3: Cross multiply
    508,715.07x = 702,029.52 × 317,839.17
  4. Step 4: Simplify right side
    508,715.07x = 223,132,479,952.30
  5. Step 5: Solve for x
    x = 223,132,479,952.30/508,715.07
  6. Step 6: Final answer
    x = 438,619.76

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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.