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Finding the Fourth Proportional to 653,379.93, 979,862.54 and 210,044.25

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Solution

The fourth proportional to 653,379.93, 979,862.54 and 210,044.25 is: 314,999.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,379.93 : 979,862.54 = 210,044.25 : x
  2. Step 2: Convert to fraction form
    653,379.93/979,862.54 = 210,044.25/x
  3. Step 3: Cross multiply
    653,379.93x = 979,862.54 × 210,044.25
  4. Step 4: Simplify right side
    653,379.93x = 205,814,491,267.17
  5. Step 5: Solve for x
    x = 205,814,491,267.17/653,379.93
  6. Step 6: Final answer
    x = 314,999.71

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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.