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Finding the Fourth Proportional to 803,481.90, 1,205,560.89 and 500,129.74

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Solution

The fourth proportional to 803,481.90, 1,205,560.89 and 500,129.74 is: 750,405.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,481.90 : 1,205,560.89 = 500,129.74 : x
  2. Step 2: Convert to fraction form
    803,481.90/1,205,560.89 = 500,129.74/x
  3. Step 3: Cross multiply
    803,481.90x = 1,205,560.89 × 500,129.74
  4. Step 4: Simplify right side
    803,481.90x = 602,936,854,469.87
  5. Step 5: Solve for x
    x = 602,936,854,469.87/803,481.90
  6. Step 6: Final answer
    x = 750,405.02

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1.5x scale

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.