Home / 1,102,155.04-1,520,973.36-618,721.12

Finding the Fourth Proportional to 1,102,155.04, 1,520,973.36 and 618,721.12

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Solution

The fourth proportional to 1,102,155.04, 1,520,973.36 and 618,721.12 is: 853,834.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,155.04 : 1,520,973.36 = 618,721.12 : x
  2. Step 2: Convert to fraction form
    1,102,155.04/1,520,973.36 = 618,721.12/x
  3. Step 3: Cross multiply
    1,102,155.04x = 1,520,973.36 × 618,721.12
  4. Step 4: Simplify right side
    1,102,155.04x = 941,058,340,789.36
  5. Step 5: Solve for x
    x = 941,058,340,789.36/1,102,155.04
  6. Step 6: Final answer
    x = 853,834.81

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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.