Home / 1,442,567.28-1,990,569.37-830,918.97

Finding the Fourth Proportional to 1,442,567.28, 1,990,569.37 and 830,918.97

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Solution

The fourth proportional to 1,442,567.28, 1,990,569.37 and 830,918.97 is: 1,146,568.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,567.28 : 1,990,569.37 = 830,918.97 : x
  2. Step 2: Convert to fraction form
    1,442,567.28/1,990,569.37 = 830,918.97/x
  3. Step 3: Cross multiply
    1,442,567.28x = 1,990,569.37 × 830,918.97
  4. Step 4: Simplify right side
    1,442,567.28x = 1,654,001,850,633.95
  5. Step 5: Solve for x
    x = 1,654,001,850,633.95/1,442,567.28
  6. Step 6: Final answer
    x = 1,146,568.26

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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.