Home / 1,001,387.16-1,381,969.62-571,805.28

Finding the Fourth Proportional to 1,001,387.16, 1,381,969.62 and 571,805.28

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Solution

The fourth proportional to 1,001,387.16, 1,381,969.62 and 571,805.28 is: 789,122.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,001,387.16 : 1,381,969.62 = 571,805.28 : x
  2. Step 2: Convert to fraction form
    1,001,387.16/1,381,969.62 = 571,805.28/x
  3. Step 3: Cross multiply
    1,001,387.16x = 1,381,969.62 × 571,805.28
  4. Step 4: Simplify right side
    1,001,387.16x = 790,217,525,515.59
  5. Step 5: Solve for x
    x = 790,217,525,515.59/1,001,387.16
  6. Step 6: Final answer
    x = 789,122.89

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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.