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Finding the Fourth Proportional to 539,792.32, 744,909.42 and 298,074.88

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Solution

The fourth proportional to 539,792.32, 744,909.42 and 298,074.88 is: 411,341.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,792.32 : 744,909.42 = 298,074.88 : x
  2. Step 2: Convert to fraction form
    539,792.32/744,909.42 = 298,074.88/x
  3. Step 3: Cross multiply
    539,792.32x = 744,909.42 × 298,074.88
  4. Step 4: Simplify right side
    539,792.32x = 222,038,785,977.37
  5. Step 5: Solve for x
    x = 222,038,785,977.37/539,792.32
  6. Step 6: Final answer
    x = 411,341.14

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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.