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Finding the Fourth Proportional to 648,315.20, 972,472.80 and 227,633.60

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Solution

The fourth proportional to 648,315.20, 972,472.80 and 227,633.60 is: 341,450.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,315.20 : 972,472.80 = 227,633.60 : x
  2. Step 2: Convert to fraction form
    648,315.20/972,472.80 = 227,633.60/x
  3. Step 3: Cross multiply
    648,315.20x = 972,472.80 × 227,633.60
  4. Step 4: Simplify right side
    648,315.20x = 221,367,484,366.08
  5. Step 5: Solve for x
    x = 221,367,484,366.08/648,315.20
  6. Step 6: Final answer
    x = 341,450.40

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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.