Home / 461,335.78-691,923.88-208,557.49

Finding the Fourth Proportional to 461,335.78, 691,923.88 and 208,557.49

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Solution

The fourth proportional to 461,335.78, 691,923.88 and 208,557.49 is: 312,800.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,335.78 : 691,923.88 = 208,557.49 : x
  2. Step 2: Convert to fraction form
    461,335.78/691,923.88 = 208,557.49/x
  3. Step 3: Cross multiply
    461,335.78x = 691,923.88 × 208,557.49
  4. Step 4: Simplify right side
    461,335.78x = 144,305,903,702.85
  5. Step 5: Solve for x
    x = 144,305,903,702.85/461,335.78
  6. Step 6: Final answer
    x = 312,800.15

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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.