Home / 857,431.60-1,285,272.60-502,262.80

Finding the Fourth Proportional to 857,431.60, 1,285,272.60 and 502,262.80

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Solution

The fourth proportional to 857,431.60, 1,285,272.60 and 502,262.80 is: 752,881.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,431.60 : 1,285,272.60 = 502,262.80 : x
  2. Step 2: Convert to fraction form
    857,431.60/1,285,272.60 = 502,262.80/x
  3. Step 3: Cross multiply
    857,431.60x = 1,285,272.60 × 502,262.80
  4. Step 4: Simplify right side
    857,431.60x = 645,544,614,839.28
  5. Step 5: Solve for x
    x = 645,544,614,839.28/857,431.60
  6. Step 6: Final answer
    x = 752,881.76

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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.