Home / 1,040,108.80-1,559,702.40-479,315.20

Finding the Fourth Proportional to 1,040,108.80, 1,559,702.40 and 479,315.20

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Solution

The fourth proportional to 1,040,108.80, 1,559,702.40 and 479,315.20 is: 718,760.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,108.80 : 1,559,702.40 = 479,315.20 : x
  2. Step 2: Convert to fraction form
    1,040,108.80/1,559,702.40 = 479,315.20/x
  3. Step 3: Cross multiply
    1,040,108.80x = 1,559,702.40 × 479,315.20
  4. Step 4: Simplify right side
    1,040,108.80x = 747,589,067,796.48
  5. Step 5: Solve for x
    x = 747,589,067,796.48/1,040,108.80
  6. Step 6: Final answer
    x = 718,760.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.