Home / 861,716.39-1,292,574.90-860,471.16

Finding the Fourth Proportional to 861,716.39, 1,292,574.90 and 860,471.16

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Solution

The fourth proportional to 861,716.39, 1,292,574.90 and 860,471.16 is: 1,290,707.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,716.39 : 1,292,574.90 = 860,471.16 : x
  2. Step 2: Convert to fraction form
    861,716.39/1,292,574.90 = 860,471.16/x
  3. Step 3: Cross multiply
    861,716.39x = 1,292,574.90 × 860,471.16
  4. Step 4: Simplify right side
    861,716.39x = 1,112,223,429,847.92
  5. Step 5: Solve for x
    x = 1,112,223,429,847.92/861,716.39
  6. Step 6: Final answer
    x = 1,290,707.07

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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.