Home / 577,436.80-865,171.05-492,799.90

Finding the Fourth Proportional to 577,436.80, 865,171.05 and 492,799.90

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Solution

The fourth proportional to 577,436.80, 865,171.05 and 492,799.90 is: 738,359.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,436.80 : 865,171.05 = 492,799.90 : x
  2. Step 2: Convert to fraction form
    577,436.80/865,171.05 = 492,799.90/x
  3. Step 3: Cross multiply
    577,436.80x = 865,171.05 × 492,799.90
  4. Step 4: Simplify right side
    577,436.80x = 426,356,206,922.90
  5. Step 5: Solve for x
    x = 426,356,206,922.90/577,436.80
  6. Step 6: Final answer
    x = 738,359.95

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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.