Home / 812,023.60-1,120,817.48-472,557.20

Finding the Fourth Proportional to 812,023.60, 1,120,817.48 and 472,557.20

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Solution

The fourth proportional to 812,023.60, 1,120,817.48 and 472,557.20 is: 652,259.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,023.60 : 1,120,817.48 = 472,557.20 : x
  2. Step 2: Convert to fraction form
    812,023.60/1,120,817.48 = 472,557.20/x
  3. Step 3: Cross multiply
    812,023.60x = 1,120,817.48 × 472,557.20
  4. Step 4: Simplify right side
    812,023.60x = 529,650,370,059.86
  5. Step 5: Solve for x
    x = 529,650,370,059.86/812,023.60
  6. Step 6: Final answer
    x = 652,259.82

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1.5x scale

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.