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Finding the Fourth Proportional to 909,908.20, 1,364,862.30 and 898,098.40

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Solution

The fourth proportional to 909,908.20, 1,364,862.30 and 898,098.40 is: 1,347,147.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,908.20 : 1,364,862.30 = 898,098.40 : x
  2. Step 2: Convert to fraction form
    909,908.20/1,364,862.30 = 898,098.40/x
  3. Step 3: Cross multiply
    909,908.20x = 1,364,862.30 × 898,098.40
  4. Step 4: Simplify right side
    909,908.20x = 1,225,780,647,850.32
  5. Step 5: Solve for x
    x = 1,225,780,647,850.32/909,908.20
  6. Step 6: Final answer
    x = 1,347,147.60

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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.