Home / 1,660,617.68-2,291,677.80-981,617.36

Finding the Fourth Proportional to 1,660,617.68, 2,291,677.80 and 981,617.36

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Solution

The fourth proportional to 1,660,617.68, 2,291,677.80 and 981,617.36 is: 1,354,646.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660,617.68 : 2,291,677.80 = 981,617.36 : x
  2. Step 2: Convert to fraction form
    1,660,617.68/2,291,677.80 = 981,617.36/x
  3. Step 3: Cross multiply
    1,660,617.68x = 2,291,677.80 × 981,617.36
  4. Step 4: Simplify right side
    1,660,617.68x = 2,249,550,712,006.61
  5. Step 5: Solve for x
    x = 2,249,550,712,006.61/1,660,617.68
  6. Step 6: Final answer
    x = 1,354,646.97

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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.