Home / 752,889.96-1,038,990.18-413,380.20

Finding the Fourth Proportional to 752,889.96, 1,038,990.18 and 413,380.20

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Solution

The fourth proportional to 752,889.96, 1,038,990.18 and 413,380.20 is: 570,465.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,889.96 : 1,038,990.18 = 413,380.20 : x
  2. Step 2: Convert to fraction form
    752,889.96/1,038,990.18 = 413,380.20/x
  3. Step 3: Cross multiply
    752,889.96x = 1,038,990.18 × 413,380.20
  4. Step 4: Simplify right side
    752,889.96x = 429,497,968,406.44
  5. Step 5: Solve for x
    x = 429,497,968,406.44/752,889.96
  6. Step 6: Final answer
    x = 570,465.79

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Double scale
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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.