Home / 891,135.60-1,336,703.40-743,513.10

Finding the Fourth Proportional to 891,135.60, 1,336,703.40 and 743,513.10

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Solution

The fourth proportional to 891,135.60, 1,336,703.40 and 743,513.10 is: 1,115,269.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,135.60 : 1,336,703.40 = 743,513.10 : x
  2. Step 2: Convert to fraction form
    891,135.60/1,336,703.40 = 743,513.10/x
  3. Step 3: Cross multiply
    891,135.60x = 1,336,703.40 × 743,513.10
  4. Step 4: Simplify right side
    891,135.60x = 993,856,488,714.54
  5. Step 5: Solve for x
    x = 993,856,488,714.54/891,135.60
  6. Step 6: Final answer
    x = 1,115,269.65

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1.5x scale

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.