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Finding the Fourth Proportional to 508,523.79, 701,898.98 and 317,422.11

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Solution

The fourth proportional to 508,523.79, 701,898.98 and 317,422.11 is: 438,127.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,523.79 : 701,898.98 = 317,422.11 : x
  2. Step 2: Convert to fraction form
    508,523.79/701,898.98 = 317,422.11/x
  3. Step 3: Cross multiply
    508,523.79x = 701,898.98 × 317,422.11
  4. Step 4: Simplify right side
    508,523.79x = 222,798,253,651.34
  5. Step 5: Solve for x
    x = 222,798,253,651.34/508,523.79
  6. Step 6: Final answer
    x = 438,127.49

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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.