Home / 648,082.60-972,306.96-221,710.66

Finding the Fourth Proportional to 648,082.60, 972,306.96 and 221,710.66

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Solution

The fourth proportional to 648,082.60, 972,306.96 and 221,710.66 is: 332,628.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,082.60 : 972,306.96 = 221,710.66 : x
  2. Step 2: Convert to fraction form
    648,082.60/972,306.96 = 221,710.66/x
  3. Step 3: Cross multiply
    648,082.60x = 972,306.96 × 221,710.66
  4. Step 4: Simplify right side
    648,082.60x = 215,570,817,824.19
  5. Step 5: Solve for x
    x = 215,570,817,824.19/648,082.60
  6. Step 6: Final answer
    x = 332,628.62

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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.