Home / 1,291,198.48-1,781,867.56-710,429.24

Finding the Fourth Proportional to 1,291,198.48, 1,781,867.56 and 710,429.24

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Solution

The fourth proportional to 1,291,198.48, 1,781,867.56 and 710,429.24 is: 980,399.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,198.48 : 1,781,867.56 = 710,429.24 : x
  2. Step 2: Convert to fraction form
    1,291,198.48/1,781,867.56 = 710,429.24/x
  3. Step 3: Cross multiply
    1,291,198.48x = 1,781,867.56 × 710,429.24
  4. Step 4: Simplify right side
    1,291,198.48x = 1,265,890,816,431.45
  5. Step 5: Solve for x
    x = 1,265,890,816,431.45/1,291,198.48
  6. Step 6: Final answer
    x = 980,399.87

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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.