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Finding the Fourth Proportional to 898,326.40, 1,347,511.20 and 267,260.80

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Solution

The fourth proportional to 898,326.40, 1,347,511.20 and 267,260.80 is: 400,897.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,326.40 : 1,347,511.20 = 267,260.80 : x
  2. Step 2: Convert to fraction form
    898,326.40/1,347,511.20 = 267,260.80/x
  3. Step 3: Cross multiply
    898,326.40x = 1,347,511.20 × 267,260.80
  4. Step 4: Simplify right side
    898,326.40x = 360,136,921,320.96
  5. Step 5: Solve for x
    x = 360,136,921,320.96/898,326.40
  6. Step 6: Final answer
    x = 400,897.63

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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.