Home / 1,291,195.47-1,781,863.41-710,426.23

Finding the Fourth Proportional to 1,291,195.47, 1,781,863.41 and 710,426.23

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Solution

The fourth proportional to 1,291,195.47, 1,781,863.41 and 710,426.23 is: 980,395.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,195.47 : 1,781,863.41 = 710,426.23 : x
  2. Step 2: Convert to fraction form
    1,291,195.47/1,781,863.41 = 710,426.23/x
  3. Step 3: Cross multiply
    1,291,195.47x = 1,781,863.41 × 710,426.23
  4. Step 4: Simplify right side
    1,291,195.47x = 1,265,882,504,741.24
  5. Step 5: Solve for x
    x = 1,265,882,504,741.24/1,291,195.47
  6. Step 6: Final answer
    x = 980,395.71

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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.