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Finding the Fourth Proportional to 898,314.40, 1,347,471.60 and 809,740.90

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Solution

The fourth proportional to 898,314.40, 1,347,471.60 and 809,740.90 is: 1,214,611.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,314.40 : 1,347,471.60 = 809,740.90 : x
  2. Step 2: Convert to fraction form
    898,314.40/1,347,471.60 = 809,740.90/x
  3. Step 3: Cross multiply
    898,314.40x = 1,347,471.60 × 809,740.90
  4. Step 4: Simplify right side
    898,314.40x = 1,091,102,866,108.44
  5. Step 5: Solve for x
    x = 1,091,102,866,108.44/898,314.40
  6. Step 6: Final answer
    x = 1,214,611.35

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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.