Home / 1,101,985.40-1,520,762.42-618,585.52

Finding the Fourth Proportional to 1,101,985.40, 1,520,762.42 and 618,585.52

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Solution

The fourth proportional to 1,101,985.40, 1,520,762.42 and 618,585.52 is: 853,660.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101,985.40 : 1,520,762.42 = 618,585.52 : x
  2. Step 2: Convert to fraction form
    1,101,985.40/1,520,762.42 = 618,585.52/x
  3. Step 3: Cross multiply
    1,101,985.40x = 1,520,762.42 × 618,585.52
  4. Step 4: Simplify right side
    1,101,985.40x = 940,721,612,372.16
  5. Step 5: Solve for x
    x = 940,721,612,372.16/1,101,985.40
  6. Step 6: Final answer
    x = 853,660.69

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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.