Home / 1,028,613.20-1,543,166.16-429,240.96

Finding the Fourth Proportional to 1,028,613.20, 1,543,166.16 and 429,240.96

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Solution

The fourth proportional to 1,028,613.20, 1,543,166.16 and 429,240.96 is: 643,964.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,613.20 : 1,543,166.16 = 429,240.96 : x
  2. Step 2: Convert to fraction form
    1,028,613.20/1,543,166.16 = 429,240.96/x
  3. Step 3: Cross multiply
    1,028,613.20x = 1,543,166.16 × 429,240.96
  4. Step 4: Simplify right side
    1,028,613.20x = 662,390,123,957.91
  5. Step 5: Solve for x
    x = 662,390,123,957.91/1,028,613.20
  6. Step 6: Final answer
    x = 643,964.25

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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.