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Finding the Fourth Proportional to 887,746.40, 1,331,445.84 and 738,942.88

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Solution

The fourth proportional to 887,746.40, 1,331,445.84 and 738,942.88 is: 1,108,269.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,746.40 : 1,331,445.84 = 738,942.88 : x
  2. Step 2: Convert to fraction form
    887,746.40/1,331,445.84 = 738,942.88/x
  3. Step 3: Cross multiply
    887,746.40x = 1,331,445.84 × 738,942.88
  4. Step 4: Simplify right side
    887,746.40x = 983,862,423,573.62
  5. Step 5: Solve for x
    x = 983,862,423,573.62/887,746.40
  6. Step 6: Final answer
    x = 1,108,269.69

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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.