Home / 1,557,074.80-2,335,612.20-916,721.20

Finding the Fourth Proportional to 1,557,074.80, 2,335,612.20 and 916,721.20

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Solution

The fourth proportional to 1,557,074.80, 2,335,612.20 and 916,721.20 is: 1,375,081.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,074.80 : 2,335,612.20 = 916,721.20 : x
  2. Step 2: Convert to fraction form
    1,557,074.80/2,335,612.20 = 916,721.20/x
  3. Step 3: Cross multiply
    1,557,074.80x = 2,335,612.20 × 916,721.20
  4. Step 4: Simplify right side
    1,557,074.80x = 2,141,105,218,718.64
  5. Step 5: Solve for x
    x = 2,141,105,218,718.64/1,557,074.80
  6. Step 6: Final answer
    x = 1,375,081.80

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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.