Home / 648,023.80-970,334.70-457,455.10

Finding the Fourth Proportional to 648,023.80, 970,334.70 and 457,455.10

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Solution

The fourth proportional to 648,023.80, 970,334.70 and 457,455.10 is: 684,981.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,023.80 : 970,334.70 = 457,455.10 : x
  2. Step 2: Convert to fraction form
    648,023.80/970,334.70 = 457,455.10/x
  3. Step 3: Cross multiply
    648,023.80x = 970,334.70 × 457,455.10
  4. Step 4: Simplify right side
    648,023.80x = 443,884,557,221.97
  5. Step 5: Solve for x
    x = 443,884,557,221.97/648,023.80
  6. Step 6: Final answer
    x = 684,981.87

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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.