Home / 959,319.11-1,438,728.08-285,218.89

Finding the Fourth Proportional to 959,319.11, 1,438,728.08 and 285,218.89

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Solution

The fourth proportional to 959,319.11, 1,438,728.08 and 285,218.89 is: 427,753.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,319.11 : 1,438,728.08 = 285,218.89 : x
  2. Step 2: Convert to fraction form
    959,319.11/1,438,728.08 = 285,218.89/x
  3. Step 3: Cross multiply
    959,319.11x = 1,438,728.08 × 285,218.89
  4. Step 4: Simplify right side
    959,319.11x = 410,352,420,966.52
  5. Step 5: Solve for x
    x = 410,352,420,966.52/959,319.11
  6. Step 6: Final answer
    x = 427,753.83

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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.