Home / 752,445.74-1,128,665.56-272,561.24

Finding the Fourth Proportional to 752,445.74, 1,128,665.56 and 272,561.24

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Solution

The fourth proportional to 752,445.74, 1,128,665.56 and 272,561.24 is: 408,840.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,445.74 : 1,128,665.56 = 272,561.24 : x
  2. Step 2: Convert to fraction form
    752,445.74/1,128,665.56 = 272,561.24/x
  3. Step 3: Cross multiply
    752,445.74x = 1,128,665.56 × 272,561.24
  4. Step 4: Simplify right side
    752,445.74x = 307,630,484,578.89
  5. Step 5: Solve for x
    x = 307,630,484,578.89/752,445.74
  6. Step 6: Final answer
    x = 408,840.76

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Double scale
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Similar ratio
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1.5x scale

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.