Home / 539,010.20-808,517.70-139,622.60

Finding the Fourth Proportional to 539,010.20, 808,517.70 and 139,622.60

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Solution

The fourth proportional to 539,010.20, 808,517.70 and 139,622.60 is: 209,434.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,010.20 : 808,517.70 = 139,622.60 : x
  2. Step 2: Convert to fraction form
    539,010.20/808,517.70 = 139,622.60/x
  3. Step 3: Cross multiply
    539,010.20x = 808,517.70 × 139,622.60
  4. Step 4: Simplify right side
    539,010.20x = 112,887,343,420.02
  5. Step 5: Solve for x
    x = 112,887,343,420.02/539,010.20
  6. Step 6: Final answer
    x = 209,434.52

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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.