Home / 812,587.60-1,121,374.02-450,003.52

Finding the Fourth Proportional to 812,587.60, 1,121,374.02 and 450,003.52

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Solution

The fourth proportional to 812,587.60, 1,121,374.02 and 450,003.52 is: 621,006.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,587.60 : 1,121,374.02 = 450,003.52 : x
  2. Step 2: Convert to fraction form
    812,587.60/1,121,374.02 = 450,003.52/x
  3. Step 3: Cross multiply
    812,587.60x = 1,121,374.02 × 450,003.52
  4. Step 4: Simplify right side
    812,587.60x = 504,622,256,236.55
  5. Step 5: Solve for x
    x = 504,622,256,236.55/812,587.60
  6. Step 6: Final answer
    x = 621,006.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.