Home / 1,101,841.28-1,520,540.93-618,406.43

Finding the Fourth Proportional to 1,101,841.28, 1,520,540.93 and 618,406.43

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Solution

The fourth proportional to 1,101,841.28, 1,520,540.93 and 618,406.43 is: 853,400.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101,841.28 : 1,520,540.93 = 618,406.43 : x
  2. Step 2: Convert to fraction form
    1,101,841.28/1,520,540.93 = 618,406.43/x
  3. Step 3: Cross multiply
    1,101,841.28x = 1,520,540.93 × 618,406.43
  4. Step 4: Simplify right side
    1,101,841.28x = 940,312,287,208.00
  5. Step 5: Solve for x
    x = 940,312,287,208.00/1,101,841.28
  6. Step 6: Final answer
    x = 853,400.85

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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.