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Finding the Fourth Proportional to 649,900.80, 974,462.40 and 334,972.80

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Solution

The fourth proportional to 649,900.80, 974,462.40 and 334,972.80 is: 502,258.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,900.80 : 974,462.40 = 334,972.80 : x
  2. Step 2: Convert to fraction form
    649,900.80/974,462.40 = 334,972.80/x
  3. Step 3: Cross multiply
    649,900.80x = 974,462.40 × 334,972.80
  4. Step 4: Simplify right side
    649,900.80x = 326,418,398,622.72
  5. Step 5: Solve for x
    x = 326,418,398,622.72/649,900.80
  6. Step 6: Final answer
    x = 502,258.80

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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.