Home / 743,930.60-1,115,939.10-211,490.60

Finding the Fourth Proportional to 743,930.60, 1,115,939.10 and 211,490.60

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Solution

The fourth proportional to 743,930.60, 1,115,939.10 and 211,490.60 is: 317,248.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,930.60 : 1,115,939.10 = 211,490.60 : x
  2. Step 2: Convert to fraction form
    743,930.60/1,115,939.10 = 211,490.60/x
  3. Step 3: Cross multiply
    743,930.60x = 1,115,939.10 × 211,490.60
  4. Step 4: Simplify right side
    743,930.60x = 236,010,629,822.46
  5. Step 5: Solve for x
    x = 236,010,629,822.46/743,930.60
  6. Step 6: Final answer
    x = 317,248.18

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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.