Home / 911,337.40-1,367,006.10-280,169.20

Finding the Fourth Proportional to 911,337.40, 1,367,006.10 and 280,169.20

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Solution

The fourth proportional to 911,337.40, 1,367,006.10 and 280,169.20 is: 420,253.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,337.40 : 1,367,006.10 = 280,169.20 : x
  2. Step 2: Convert to fraction form
    911,337.40/1,367,006.10 = 280,169.20/x
  3. Step 3: Cross multiply
    911,337.40x = 1,367,006.10 × 280,169.20
  4. Step 4: Simplify right side
    911,337.40x = 382,993,005,432.12
  5. Step 5: Solve for x
    x = 382,993,005,432.12/911,337.40
  6. Step 6: Final answer
    x = 420,253.80

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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.