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Finding the Fourth Proportional to 545,224.32, 752,356.80 and 402,061.44

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Solution

The fourth proportional to 545,224.32, 752,356.80 and 402,061.44 is: 554,805.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,224.32 : 752,356.80 = 402,061.44 : x
  2. Step 2: Convert to fraction form
    545,224.32/752,356.80 = 402,061.44/x
  3. Step 3: Cross multiply
    545,224.32x = 752,356.80 × 402,061.44
  4. Step 4: Simplify right side
    545,224.32x = 302,493,658,401.79
  5. Step 5: Solve for x
    x = 302,493,658,401.79/545,224.32
  6. Step 6: Final answer
    x = 554,805.88

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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.