Home / 680,614.48-1,020,922.04-280,815.84

Finding the Fourth Proportional to 680,614.48, 1,020,922.04 and 280,815.84

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Solution

The fourth proportional to 680,614.48, 1,020,922.04 and 280,815.84 is: 421,223.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,614.48 : 1,020,922.04 = 280,815.84 : x
  2. Step 2: Convert to fraction form
    680,614.48/1,020,922.04 = 280,815.84/x
  3. Step 3: Cross multiply
    680,614.48x = 1,020,922.04 × 280,815.84
  4. Step 4: Simplify right side
    680,614.48x = 286,691,080,237.11
  5. Step 5: Solve for x
    x = 286,691,080,237.11/680,614.48
  6. Step 6: Final answer
    x = 421,223.89

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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.