Home / 699,458.10-1,049,187.15-447,515.70

Finding the Fourth Proportional to 699,458.10, 1,049,187.15 and 447,515.70

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Solution

The fourth proportional to 699,458.10, 1,049,187.15 and 447,515.70 is: 671,273.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,458.10 : 1,049,187.15 = 447,515.70 : x
  2. Step 2: Convert to fraction form
    699,458.10/1,049,187.15 = 447,515.70/x
  3. Step 3: Cross multiply
    699,458.10x = 1,049,187.15 × 447,515.70
  4. Step 4: Simplify right side
    699,458.10x = 469,527,721,863.26
  5. Step 5: Solve for x
    x = 469,527,721,863.26/699,458.10
  6. Step 6: Final answer
    x = 671,273.55

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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.