Home / 987,385.05-1,479,886.88-454,175.01

Finding the Fourth Proportional to 987,385.05, 1,479,886.88 and 454,175.01

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Solution

The fourth proportional to 987,385.05, 1,479,886.88 and 454,175.01 is: 680,714.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,385.05 : 1,479,886.88 = 454,175.01 : x
  2. Step 2: Convert to fraction form
    987,385.05/1,479,886.88 = 454,175.01/x
  3. Step 3: Cross multiply
    987,385.05x = 1,479,886.88 × 454,175.01
  4. Step 4: Simplify right side
    987,385.05x = 672,127,636,251.99
  5. Step 5: Solve for x
    x = 672,127,636,251.99/987,385.05
  6. Step 6: Final answer
    x = 680,714.82

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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.