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Finding the Fourth Proportional to 845,995.76, 1,268,591.88 and 491,118.56

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Solution

The fourth proportional to 845,995.76, 1,268,591.88 and 491,118.56 is: 736,444.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,995.76 : 1,268,591.88 = 491,118.56 : x
  2. Step 2: Convert to fraction form
    845,995.76/1,268,591.88 = 491,118.56/x
  3. Step 3: Cross multiply
    845,995.76x = 1,268,591.88 × 491,118.56
  4. Step 4: Simplify right side
    845,995.76x = 623,029,017,333.29
  5. Step 5: Solve for x
    x = 623,029,017,333.29/845,995.76
  6. Step 6: Final answer
    x = 736,444.61

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Double scale
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1.5x scale

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.