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Finding the Fourth Proportional to 472,292.20, 708,438.30 and 304,330.60

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Solution

The fourth proportional to 472,292.20, 708,438.30 and 304,330.60 is: 456,495.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,292.20 : 708,438.30 = 304,330.60 : x
  2. Step 2: Convert to fraction form
    472,292.20/708,438.30 = 304,330.60/x
  3. Step 3: Cross multiply
    472,292.20x = 708,438.30 × 304,330.60
  4. Step 4: Simplify right side
    472,292.20x = 215,599,452,901.98
  5. Step 5: Solve for x
    x = 215,599,452,901.98/472,292.20
  6. Step 6: Final answer
    x = 456,495.90

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Similar ratio
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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.