Home / 648,023.20-972,180.60-381,646.60

Finding the Fourth Proportional to 648,023.20, 972,180.60 and 381,646.60

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Solution

The fourth proportional to 648,023.20, 972,180.60 and 381,646.60 is: 572,555.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,023.20 : 972,180.60 = 381,646.60 : x
  2. Step 2: Convert to fraction form
    648,023.20/972,180.60 = 381,646.60/x
  3. Step 3: Cross multiply
    648,023.20x = 972,180.60 × 381,646.60
  4. Step 4: Simplify right side
    648,023.20x = 371,029,420,575.96
  5. Step 5: Solve for x
    x = 371,029,420,575.96/648,023.20
  6. Step 6: Final answer
    x = 572,555.77

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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.