Home / 991,677.87-1,487,516.81-281,613.65

Finding the Fourth Proportional to 991,677.87, 1,487,516.81 and 281,613.65

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Solution

The fourth proportional to 991,677.87, 1,487,516.81 and 281,613.65 is: 422,420.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,677.87 : 1,487,516.81 = 281,613.65 : x
  2. Step 2: Convert to fraction form
    991,677.87/1,487,516.81 = 281,613.65/x
  3. Step 3: Cross multiply
    991,677.87x = 1,487,516.81 × 281,613.65
  4. Step 4: Simplify right side
    991,677.87x = 418,905,029,454.80
  5. Step 5: Solve for x
    x = 418,905,029,454.80/991,677.87
  6. Step 6: Final answer
    x = 422,420.47

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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.