Home / 639,570.11-959,957.96-470,575.17

Finding the Fourth Proportional to 639,570.11, 959,957.96 and 470,575.17

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Solution

The fourth proportional to 639,570.11, 959,957.96 and 470,575.17 is: 706,306.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,570.11 : 959,957.96 = 470,575.17 : x
  2. Step 2: Convert to fraction form
    639,570.11/959,957.96 = 470,575.17/x
  3. Step 3: Cross multiply
    639,570.11x = 959,957.96 × 470,575.17
  4. Step 4: Simplify right side
    639,570.11x = 451,732,377,866.98
  5. Step 5: Solve for x
    x = 451,732,377,866.98/639,570.11
  6. Step 6: Final answer
    x = 706,306.27

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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.