Home / 389,436.20-584,154.30-365,816.60

Finding the Fourth Proportional to 389,436.20, 584,154.30 and 365,816.60

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Solution

The fourth proportional to 389,436.20, 584,154.30 and 365,816.60 is: 548,724.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,436.20 : 584,154.30 = 365,816.60 : x
  2. Step 2: Convert to fraction form
    389,436.20/584,154.30 = 365,816.60/x
  3. Step 3: Cross multiply
    389,436.20x = 584,154.30 × 365,816.60
  4. Step 4: Simplify right side
    389,436.20x = 213,693,339,901.38
  5. Step 5: Solve for x
    x = 213,693,339,901.38/389,436.20
  6. Step 6: Final answer
    x = 548,724.90

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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.