Home / 782,437.70-1,173,736.20-270,036.15

Finding the Fourth Proportional to 782,437.70, 1,173,736.20 and 270,036.15

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Solution

The fourth proportional to 782,437.70, 1,173,736.20 and 270,036.15 is: 405,081.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,437.70 : 1,173,736.20 = 270,036.15 : x
  2. Step 2: Convert to fraction form
    782,437.70/1,173,736.20 = 270,036.15/x
  3. Step 3: Cross multiply
    782,437.70x = 1,173,736.20 × 270,036.15
  4. Step 4: Simplify right side
    782,437.70x = 316,951,208,799.72
  5. Step 5: Solve for x
    x = 316,951,208,799.72/782,437.70
  6. Step 6: Final answer
    x = 405,081.72

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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.