Home / 1,101,739.43-1,520,430.56-618,334.53

Finding the Fourth Proportional to 1,101,739.43, 1,520,430.56 and 618,334.53

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Solution

The fourth proportional to 1,101,739.43, 1,520,430.56 and 618,334.53 is: 853,318.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101,739.43 : 1,520,430.56 = 618,334.53 : x
  2. Step 2: Convert to fraction form
    1,101,739.43/1,520,430.56 = 618,334.53/x
  3. Step 3: Cross multiply
    1,101,739.43x = 1,520,430.56 × 618,334.53
  4. Step 4: Simplify right side
    1,101,739.43x = 940,134,712,623.56
  5. Step 5: Solve for x
    x = 940,134,712,623.56/1,101,739.43
  6. Step 6: Final answer
    x = 853,318.57

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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.