Home / 1,042,629.68-1,557,475.40-756,045.20

Finding the Fourth Proportional to 1,042,629.68, 1,557,475.40 and 756,045.20

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Solution

The fourth proportional to 1,042,629.68, 1,557,475.40 and 756,045.20 is: 1,129,376.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,629.68 : 1,557,475.40 = 756,045.20 : x
  2. Step 2: Convert to fraction form
    1,042,629.68/1,557,475.40 = 756,045.20/x
  3. Step 3: Cross multiply
    1,042,629.68x = 1,557,475.40 × 756,045.20
  4. Step 4: Simplify right side
    1,042,629.68x = 1,177,521,800,288.08
  5. Step 5: Solve for x
    x = 1,177,521,800,288.08/1,042,629.68
  6. Step 6: Final answer
    x = 1,129,376.83

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.