Home / 857,499.60-1,285,374.60-502,330.80

Finding the Fourth Proportional to 857,499.60, 1,285,374.60 and 502,330.80

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Solution

The fourth proportional to 857,499.60, 1,285,374.60 and 502,330.80 is: 752,983.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,499.60 : 1,285,374.60 = 502,330.80 : x
  2. Step 2: Convert to fraction form
    857,499.60/1,285,374.60 = 502,330.80/x
  3. Step 3: Cross multiply
    857,499.60x = 1,285,374.60 × 502,330.80
  4. Step 4: Simplify right side
    857,499.60x = 645,683,251,117.68
  5. Step 5: Solve for x
    x = 645,683,251,117.68/857,499.60
  6. Step 6: Final answer
    x = 752,983.73

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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.