Home / 765,043.13-1,147,565.48-285,263.62

Finding the Fourth Proportional to 765,043.13, 1,147,565.48 and 285,263.62

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Solution

The fourth proportional to 765,043.13, 1,147,565.48 and 285,263.62 is: 427,895.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,043.13 : 1,147,565.48 = 285,263.62 : x
  2. Step 2: Convert to fraction form
    765,043.13/1,147,565.48 = 285,263.62/x
  3. Step 3: Cross multiply
    765,043.13x = 1,147,565.48 × 285,263.62
  4. Step 4: Simplify right side
    765,043.13x = 327,358,678,716.61
  5. Step 5: Solve for x
    x = 327,358,678,716.61/765,043.13
  6. Step 6: Final answer
    x = 427,895.72

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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.