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Finding the Fourth Proportional to 555,100.40, 832,456.20 and 288,772.40

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Solution

The fourth proportional to 555,100.40, 832,456.20 and 288,772.40 is: 433,057.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,100.40 : 832,456.20 = 288,772.40 : x
  2. Step 2: Convert to fraction form
    555,100.40/832,456.20 = 288,772.40/x
  3. Step 3: Cross multiply
    555,100.40x = 832,456.20 × 288,772.40
  4. Step 4: Simplify right side
    555,100.40x = 240,390,374,768.88
  5. Step 5: Solve for x
    x = 240,390,374,768.88/555,100.40
  6. Step 6: Final answer
    x = 433,057.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.