Home / 1,101,971.16-1,520,615.16-618,425.46

Finding the Fourth Proportional to 1,101,971.16, 1,520,615.16 and 618,425.46

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Solution

The fourth proportional to 1,101,971.16, 1,520,615.16 and 618,425.46 is: 853,368.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101,971.16 : 1,520,615.16 = 618,425.46 : x
  2. Step 2: Convert to fraction form
    1,101,971.16/1,520,615.16 = 618,425.46/x
  3. Step 3: Cross multiply
    1,101,971.16x = 1,520,615.16 × 618,425.46
  4. Step 4: Simplify right side
    1,101,971.16x = 940,387,129,805.97
  5. Step 5: Solve for x
    x = 940,387,129,805.97/1,101,971.16
  6. Step 6: Final answer
    x = 853,368.19

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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.