Home / 729,521.52-1,005,946.20-474,399.60

Finding the Fourth Proportional to 729,521.52, 1,005,946.20 and 474,399.60

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Solution

The fourth proportional to 729,521.52, 1,005,946.20 and 474,399.60 is: 654,155.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,521.52 : 1,005,946.20 = 474,399.60 : x
  2. Step 2: Convert to fraction form
    729,521.52/1,005,946.20 = 474,399.60/x
  3. Step 3: Cross multiply
    729,521.52x = 1,005,946.20 × 474,399.60
  4. Step 4: Simplify right side
    729,521.52x = 477,220,474,901.52
  5. Step 5: Solve for x
    x = 477,220,474,901.52/729,521.52
  6. Step 6: Final answer
    x = 654,155.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.