Home / 725,000.80-1,085,350.80-538,837.60

Finding the Fourth Proportional to 725,000.80, 1,085,350.80 and 538,837.60

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Solution

The fourth proportional to 725,000.80, 1,085,350.80 and 538,837.60 is: 806,658.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,000.80 : 1,085,350.80 = 538,837.60 : x
  2. Step 2: Convert to fraction form
    725,000.80/1,085,350.80 = 538,837.60/x
  3. Step 3: Cross multiply
    725,000.80x = 1,085,350.80 × 538,837.60
  4. Step 4: Simplify right side
    725,000.80x = 584,827,820,230.08
  5. Step 5: Solve for x
    x = 584,827,820,230.08/725,000.80
  6. Step 6: Final answer
    x = 806,658.17

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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.