Home / 1,101,972.16-1,520,616.54-618,426.46

Finding the Fourth Proportional to 1,101,972.16, 1,520,616.54 and 618,426.46

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Solution

The fourth proportional to 1,101,972.16, 1,520,616.54 and 618,426.46 is: 853,369.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101,972.16 : 1,520,616.54 = 618,426.46 : x
  2. Step 2: Convert to fraction form
    1,101,972.16/1,520,616.54 = 618,426.46/x
  3. Step 3: Cross multiply
    1,101,972.16x = 1,520,616.54 × 618,426.46
  4. Step 4: Simplify right side
    1,101,972.16x = 940,389,503,849.65
  5. Step 5: Solve for x
    x = 940,389,503,849.65/1,101,972.16
  6. Step 6: Final answer
    x = 853,369.57

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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.