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Finding the Fourth Proportional to 508,581.38, 763,085.55 and 316,616.35

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Solution

The fourth proportional to 508,581.38, 763,085.55 and 316,616.35 is: 475,057.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,581.38 : 763,085.55 = 316,616.35 : x
  2. Step 2: Convert to fraction form
    508,581.38/763,085.55 = 316,616.35/x
  3. Step 3: Cross multiply
    508,581.38x = 763,085.55 × 316,616.35
  4. Step 4: Simplify right side
    508,581.38x = 241,605,359,671.03
  5. Step 5: Solve for x
    x = 241,605,359,671.03/508,581.38
  6. Step 6: Final answer
    x = 475,057.43

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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.