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Finding the Fourth Proportional to 508,919.68, 702,310.72 and 282,565.76

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Solution

The fourth proportional to 508,919.68, 702,310.72 and 282,565.76 is: 389,941.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,919.68 : 702,310.72 = 282,565.76 : x
  2. Step 2: Convert to fraction form
    508,919.68/702,310.72 = 282,565.76/x
  3. Step 3: Cross multiply
    508,919.68x = 702,310.72 × 282,565.76
  4. Step 4: Simplify right side
    508,919.68x = 198,448,962,352.95
  5. Step 5: Solve for x
    x = 198,448,962,352.95/508,919.68
  6. Step 6: Final answer
    x = 389,941.62

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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.