Home / 822,720.20-1,234,166.70-261,624.20

Finding the Fourth Proportional to 822,720.20, 1,234,166.70 and 261,624.20

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Solution

The fourth proportional to 822,720.20, 1,234,166.70 and 261,624.20 is: 392,463.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,720.20 : 1,234,166.70 = 261,624.20 : x
  2. Step 2: Convert to fraction form
    822,720.20/1,234,166.70 = 261,624.20/x
  3. Step 3: Cross multiply
    822,720.20x = 1,234,166.70 × 261,624.20
  4. Step 4: Simplify right side
    822,720.20x = 322,887,875,554.14
  5. Step 5: Solve for x
    x = 322,887,875,554.14/822,720.20
  6. Step 6: Final answer
    x = 392,463.78

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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.