Home / 648,217.20-972,617.40-293,048.40

Finding the Fourth Proportional to 648,217.20, 972,617.40 and 293,048.40

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Solution

The fourth proportional to 648,217.20, 972,617.40 and 293,048.40 is: 439,704.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,217.20 : 972,617.40 = 293,048.40 : x
  2. Step 2: Convert to fraction form
    648,217.20/972,617.40 = 293,048.40/x
  3. Step 3: Cross multiply
    648,217.20x = 972,617.40 × 293,048.40
  4. Step 4: Simplify right side
    648,217.20x = 285,023,972,882.16
  5. Step 5: Solve for x
    x = 285,023,972,882.16/648,217.20
  6. Step 6: Final answer
    x = 439,704.43

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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.