Home / 765,251.04-1,055,761.20-478,662.24

Finding the Fourth Proportional to 765,251.04, 1,055,761.20 and 478,662.24

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Solution

The fourth proportional to 765,251.04, 1,055,761.20 and 478,662.24 is: 660,375.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,251.04 : 1,055,761.20 = 478,662.24 : x
  2. Step 2: Convert to fraction form
    765,251.04/1,055,761.20 = 478,662.24/x
  3. Step 3: Cross multiply
    765,251.04x = 1,055,761.20 × 478,662.24
  4. Step 4: Simplify right side
    765,251.04x = 505,353,020,897.09
  5. Step 5: Solve for x
    x = 505,353,020,897.09/765,251.04
  6. Step 6: Final answer
    x = 660,375.48

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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.