Home / 804,970.70-1,207,456.05-431,722.70

Finding the Fourth Proportional to 804,970.70, 1,207,456.05 and 431,722.70

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Solution

The fourth proportional to 804,970.70, 1,207,456.05 and 431,722.70 is: 647,584.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,970.70 : 1,207,456.05 = 431,722.70 : x
  2. Step 2: Convert to fraction form
    804,970.70/1,207,456.05 = 431,722.70/x
  3. Step 3: Cross multiply
    804,970.70x = 1,207,456.05 × 431,722.70
  4. Step 4: Simplify right side
    804,970.70x = 521,286,186,037.34
  5. Step 5: Solve for x
    x = 521,286,186,037.34/804,970.70
  6. Step 6: Final answer
    x = 647,584.05

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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.