Home / 1,487,385.36-2,231,078.76-981,828.16

Finding the Fourth Proportional to 1,487,385.36, 2,231,078.76 and 981,828.16

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Solution

The fourth proportional to 1,487,385.36, 2,231,078.76 and 981,828.16 is: 1,472,742.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487,385.36 : 2,231,078.76 = 981,828.16 : x
  2. Step 2: Convert to fraction form
    1,487,385.36/2,231,078.76 = 981,828.16/x
  3. Step 3: Cross multiply
    1,487,385.36x = 2,231,078.76 × 981,828.16
  4. Step 4: Simplify right side
    1,487,385.36x = 2,190,535,953,745.88
  5. Step 5: Solve for x
    x = 2,190,535,953,745.88/1,487,385.36
  6. Step 6: Final answer
    x = 1,472,742.72

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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.