Home / 887,417.20-1,331,125.80-288,397.90

Finding the Fourth Proportional to 887,417.20, 1,331,125.80 and 288,397.90

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Solution

The fourth proportional to 887,417.20, 1,331,125.80 and 288,397.90 is: 432,596.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,417.20 : 1,331,125.80 = 288,397.90 : x
  2. Step 2: Convert to fraction form
    887,417.20/1,331,125.80 = 288,397.90/x
  3. Step 3: Cross multiply
    887,417.20x = 1,331,125.80 × 288,397.90
  4. Step 4: Simplify right side
    887,417.20x = 383,893,885,355.82
  5. Step 5: Solve for x
    x = 383,893,885,355.82/887,417.20
  6. Step 6: Final answer
    x = 432,596.85

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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.