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Finding the Fourth Proportional to 606,757.60, 910,136.40 and 185,978.80

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Solution

The fourth proportional to 606,757.60, 910,136.40 and 185,978.80 is: 278,968.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,757.60 : 910,136.40 = 185,978.80 : x
  2. Step 2: Convert to fraction form
    606,757.60/910,136.40 = 185,978.80/x
  3. Step 3: Cross multiply
    606,757.60x = 910,136.40 × 185,978.80
  4. Step 4: Simplify right side
    606,757.60x = 169,266,075,508.32
  5. Step 5: Solve for x
    x = 169,266,075,508.32/606,757.60
  6. Step 6: Final answer
    x = 278,968.20

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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.