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Finding the Fourth Proportional to 545,292.80, 752,799.20 and 382,449.28

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Solution

The fourth proportional to 545,292.80, 752,799.20 and 382,449.28 is: 527,987.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,292.80 : 752,799.20 = 382,449.28 : x
  2. Step 2: Convert to fraction form
    545,292.80/752,799.20 = 382,449.28/x
  3. Step 3: Cross multiply
    545,292.80x = 752,799.20 × 382,449.28
  4. Step 4: Simplify right side
    545,292.80x = 287,907,512,024.58
  5. Step 5: Solve for x
    x = 287,907,512,024.58/545,292.80
  6. Step 6: Final answer
    x = 527,987.00

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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.