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Finding the Fourth Proportional to 897,943.20, 1,346,914.80 and 738,510.90

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Solution

The fourth proportional to 897,943.20, 1,346,914.80 and 738,510.90 is: 1,107,766.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,943.20 : 1,346,914.80 = 738,510.90 : x
  2. Step 2: Convert to fraction form
    897,943.20/1,346,914.80 = 738,510.90/x
  3. Step 3: Cross multiply
    897,943.20x = 1,346,914.80 × 738,510.90
  4. Step 4: Simplify right side
    897,943.20x = 994,711,261,171.32
  5. Step 5: Solve for x
    x = 994,711,261,171.32/897,943.20
  6. Step 6: Final answer
    x = 1,107,766.35

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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.