Home / 879,728.92-1,214,156.44-557,469.16

Finding the Fourth Proportional to 879,728.92, 1,214,156.44 and 557,469.16

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Solution

The fourth proportional to 879,728.92, 1,214,156.44 and 557,469.16 is: 769,390.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,728.92 : 1,214,156.44 = 557,469.16 : x
  2. Step 2: Convert to fraction form
    879,728.92/1,214,156.44 = 557,469.16/x
  3. Step 3: Cross multiply
    879,728.92x = 1,214,156.44 × 557,469.16
  4. Step 4: Simplify right side
    879,728.92x = 676,854,770,715.39
  5. Step 5: Solve for x
    x = 676,854,770,715.39/879,728.92
  6. Step 6: Final answer
    x = 769,390.16

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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.