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Finding the Fourth Proportional to 539,443.12, 744,427.84 and 297,725.69

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Solution

The fourth proportional to 539,443.12, 744,427.84 and 297,725.69 is: 410,859.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,443.12 : 744,427.84 = 297,725.69 : x
  2. Step 2: Convert to fraction form
    539,443.12/744,427.84 = 297,725.69/x
  3. Step 3: Cross multiply
    539,443.12x = 744,427.84 × 297,725.69
  4. Step 4: Simplify right side
    539,443.12x = 221,635,292,319.21
  5. Step 5: Solve for x
    x = 221,635,292,319.21/539,443.12
  6. Step 6: Final answer
    x = 410,859.43

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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.