Home / 648,121.20-970,432.20-508,153.20

Finding the Fourth Proportional to 648,121.20, 970,432.20 and 508,153.20

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Solution

The fourth proportional to 648,121.20, 970,432.20 and 508,153.20 is: 760,858.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,121.20 : 970,432.20 = 508,153.20 : x
  2. Step 2: Convert to fraction form
    648,121.20/970,432.20 = 508,153.20/x
  3. Step 3: Cross multiply
    648,121.20x = 970,432.20 × 508,153.20
  4. Step 4: Simplify right side
    648,121.20x = 493,128,227,813.04
  5. Step 5: Solve for x
    x = 493,128,227,813.04/648,121.20
  6. Step 6: Final answer
    x = 760,858.04

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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.