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Finding the Fourth Proportional to 478,649.34, 660,567.24 and 274,766.25

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Solution

The fourth proportional to 478,649.34, 660,567.24 and 274,766.25 is: 379,195.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,649.34 : 660,567.24 = 274,766.25 : x
  2. Step 2: Convert to fraction form
    478,649.34/660,567.24 = 274,766.25/x
  3. Step 3: Cross multiply
    478,649.34x = 660,567.24 × 274,766.25
  4. Step 4: Simplify right side
    478,649.34x = 181,501,583,407.65
  5. Step 5: Solve for x
    x = 181,501,583,407.65/478,649.34
  6. Step 6: Final answer
    x = 379,195.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.