Home / 724,820.09-1,086,750.26-345,799.32

Finding the Fourth Proportional to 724,820.09, 1,086,750.26 and 345,799.32

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Solution

The fourth proportional to 724,820.09, 1,086,750.26 and 345,799.32 is: 518,470.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,820.09 : 1,086,750.26 = 345,799.32 : x
  2. Step 2: Convert to fraction form
    724,820.09/1,086,750.26 = 345,799.32/x
  3. Step 3: Cross multiply
    724,820.09x = 1,086,750.26 × 345,799.32
  4. Step 4: Simplify right side
    724,820.09x = 375,797,499,188.83
  5. Step 5: Solve for x
    x = 375,797,499,188.83/724,820.09
  6. Step 6: Final answer
    x = 518,470.04

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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.