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Finding the Fourth Proportional to 478,538.01, 660,377.14 and 271,804.95

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Solution

The fourth proportional to 478,538.01, 660,377.14 and 271,804.95 is: 375,087.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,538.01 : 660,377.14 = 271,804.95 : x
  2. Step 2: Convert to fraction form
    478,538.01/660,377.14 = 271,804.95/x
  3. Step 3: Cross multiply
    478,538.01x = 660,377.14 × 271,804.95
  4. Step 4: Simplify right side
    478,538.01x = 179,493,774,839.33
  5. Step 5: Solve for x
    x = 179,493,774,839.33/478,538.01
  6. Step 6: Final answer
    x = 375,087.81

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1.5x scale

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.