Home / 872,657.22-1,204,238.57-485,470.74

Finding the Fourth Proportional to 872,657.22, 1,204,238.57 and 485,470.74

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Solution

The fourth proportional to 872,657.22, 1,204,238.57 and 485,470.74 is: 669,933.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,657.22 : 1,204,238.57 = 485,470.74 : x
  2. Step 2: Convert to fraction form
    872,657.22/1,204,238.57 = 485,470.74/x
  3. Step 3: Cross multiply
    872,657.22x = 1,204,238.57 × 485,470.74
  4. Step 4: Simplify right side
    872,657.22x = 584,622,587,287.09
  5. Step 5: Solve for x
    x = 584,622,587,287.09/872,657.22
  6. Step 6: Final answer
    x = 669,933.82

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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.