Home / 891,153.10-1,336,729.65-743,530.60

Finding the Fourth Proportional to 891,153.10, 1,336,729.65 and 743,530.60

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Solution

The fourth proportional to 891,153.10, 1,336,729.65 and 743,530.60 is: 1,115,295.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,153.10 : 1,336,729.65 = 743,530.60 : x
  2. Step 2: Convert to fraction form
    891,153.10/1,336,729.65 = 743,530.60/x
  3. Step 3: Cross multiply
    891,153.10x = 1,336,729.65 × 743,530.60
  4. Step 4: Simplify right side
    891,153.10x = 993,899,398,702.29
  5. Step 5: Solve for x
    x = 993,899,398,702.29/891,153.10
  6. Step 6: Final answer
    x = 1,115,295.90

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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.