Home / 631,929.38-872,062.61-345,451.55

Finding the Fourth Proportional to 631,929.38, 872,062.61 and 345,451.55

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Solution

The fourth proportional to 631,929.38, 872,062.61 and 345,451.55 is: 476,723.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,929.38 : 872,062.61 = 345,451.55 : x
  2. Step 2: Convert to fraction form
    631,929.38/872,062.61 = 345,451.55/x
  3. Step 3: Cross multiply
    631,929.38x = 872,062.61 × 345,451.55
  4. Step 4: Simplify right side
    631,929.38x = 301,255,374,233.98
  5. Step 5: Solve for x
    x = 301,255,374,233.98/631,929.38
  6. Step 6: Final answer
    x = 476,723.17

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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.