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Finding the Fourth Proportional to 610,445, 915,798.72 and 205,677.44

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Solution

The fourth proportional to 610,445, 915,798.72 and 205,677.44 is: 308,560.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,445 : 915,798.72 = 205,677.44 : x
  2. Step 2: Convert to fraction form
    610,445/915,798.72 = 205,677.44/x
  3. Step 3: Cross multiply
    610,445x = 915,798.72 × 205,677.44
  4. Step 4: Simplify right side
    610,445x = 188,359,136,284.88
  5. Step 5: Solve for x
    x = 188,359,136,284.88/610,445
  6. Step 6: Final answer
    x = 308,560.37

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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.