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Finding the Fourth Proportional to 606,649.40, 909,974.10 and 185,870.60

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Solution

The fourth proportional to 606,649.40, 909,974.10 and 185,870.60 is: 278,805.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,649.40 : 909,974.10 = 185,870.60 : x
  2. Step 2: Convert to fraction form
    606,649.40/909,974.10 = 185,870.60/x
  3. Step 3: Cross multiply
    606,649.40x = 909,974.10 × 185,870.60
  4. Step 4: Simplify right side
    606,649.40x = 169,137,431,951.46
  5. Step 5: Solve for x
    x = 169,137,431,951.46/606,649.40
  6. Step 6: Final answer
    x = 278,805.90

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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.