Home / 748,724.20-1,122,430.20-449,323.90

Finding the Fourth Proportional to 748,724.20, 1,122,430.20 and 449,323.90

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Solution

The fourth proportional to 748,724.20, 1,122,430.20 and 449,323.90 is: 673,592.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,724.20 : 1,122,430.20 = 449,323.90 : x
  2. Step 2: Convert to fraction form
    748,724.20/1,122,430.20 = 449,323.90/x
  3. Step 3: Cross multiply
    748,724.20x = 1,122,430.20 × 449,323.90
  4. Step 4: Simplify right side
    748,724.20x = 504,334,714,941.78
  5. Step 5: Solve for x
    x = 504,334,714,941.78/748,724.20
  6. Step 6: Final answer
    x = 673,592.11

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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.