Home / 1,557,349.66-2,149,162.88-904,128.30

Finding the Fourth Proportional to 1,557,349.66, 2,149,162.88 and 904,128.30

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Solution

The fourth proportional to 1,557,349.66, 2,149,162.88 and 904,128.30 is: 1,247,708.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,349.66 : 2,149,162.88 = 904,128.30 : x
  2. Step 2: Convert to fraction form
    1,557,349.66/2,149,162.88 = 904,128.30/x
  3. Step 3: Cross multiply
    1,557,349.66x = 2,149,162.88 × 904,128.30
  4. Step 4: Simplify right side
    1,557,349.66x = 1,943,118,981,117.50
  5. Step 5: Solve for x
    x = 1,943,118,981,117.50/1,557,349.66
  6. Step 6: Final answer
    x = 1,247,708.87

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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.