Home / 578,729.52-867,044.40-427,301.64

Finding the Fourth Proportional to 578,729.52, 867,044.40 and 427,301.64

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Solution

The fourth proportional to 578,729.52, 867,044.40 and 427,301.64 is: 640,177.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,729.52 : 867,044.40 = 427,301.64 : x
  2. Step 2: Convert to fraction form
    578,729.52/867,044.40 = 427,301.64/x
  3. Step 3: Cross multiply
    578,729.52x = 867,044.40 × 427,301.64
  4. Step 4: Simplify right side
    578,729.52x = 370,489,494,072.82
  5. Step 5: Solve for x
    x = 370,489,494,072.82/578,729.52
  6. Step 6: Final answer
    x = 640,177.29

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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.