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Finding the Fourth Proportional to 898,325.40, 1,347,509.70 and 267,259.80

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Solution

The fourth proportional to 898,325.40, 1,347,509.70 and 267,259.80 is: 400,896.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,325.40 : 1,347,509.70 = 267,259.80 : x
  2. Step 2: Convert to fraction form
    898,325.40/1,347,509.70 = 267,259.80/x
  3. Step 3: Cross multiply
    898,325.40x = 1,347,509.70 × 267,259.80
  4. Step 4: Simplify right side
    898,325.40x = 360,135,172,920.06
  5. Step 5: Solve for x
    x = 360,135,172,920.06/898,325.40
  6. Step 6: Final answer
    x = 400,896.13

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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.