Home / 859,487.52-1,287,459.78-503,422.02

Finding the Fourth Proportional to 859,487.52, 1,287,459.78 and 503,422.02

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Solution

The fourth proportional to 859,487.52, 1,287,459.78 and 503,422.02 is: 754,095.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,487.52 : 1,287,459.78 = 503,422.02 : x
  2. Step 2: Convert to fraction form
    859,487.52/1,287,459.78 = 503,422.02/x
  3. Step 3: Cross multiply
    859,487.52x = 1,287,459.78 × 503,422.02
  4. Step 4: Simplify right side
    859,487.52x = 648,135,603,116.36
  5. Step 5: Solve for x
    x = 648,135,603,116.36/859,487.52
  6. Step 6: Final answer
    x = 754,095.42

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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.