Home / 1,130,721.72-1,560,759.57-723,919.20

Finding the Fourth Proportional to 1,130,721.72, 1,560,759.57 and 723,919.20

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Solution

The fourth proportional to 1,130,721.72, 1,560,759.57 and 723,919.20 is: 999,241.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,721.72 : 1,560,759.57 = 723,919.20 : x
  2. Step 2: Convert to fraction form
    1,130,721.72/1,560,759.57 = 723,919.20/x
  3. Step 3: Cross multiply
    1,130,721.72x = 1,560,759.57 × 723,919.20
  4. Step 4: Simplify right side
    1,130,721.72x = 1,129,863,819,306.74
  5. Step 5: Solve for x
    x = 1,129,863,819,306.74/1,130,721.72
  6. Step 6: Final answer
    x = 999,241.28

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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.