Home / 858,884.10-1,288,326.15-503,715.30

Finding the Fourth Proportional to 858,884.10, 1,288,326.15 and 503,715.30

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Solution

The fourth proportional to 858,884.10, 1,288,326.15 and 503,715.30 is: 755,572.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,884.10 : 1,288,326.15 = 503,715.30 : x
  2. Step 2: Convert to fraction form
    858,884.10/1,288,326.15 = 503,715.30/x
  3. Step 3: Cross multiply
    858,884.10x = 1,288,326.15 × 503,715.30
  4. Step 4: Simplify right side
    858,884.10x = 648,949,593,145.10
  5. Step 5: Solve for x
    x = 648,949,593,145.10/858,884.10
  6. Step 6: Final answer
    x = 755,572.95

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Double scale
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Similar ratio
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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.