Home / 808,315.20-1,212,472.80-275,659.20

Finding the Fourth Proportional to 808,315.20, 1,212,472.80 and 275,659.20

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Solution

The fourth proportional to 808,315.20, 1,212,472.80 and 275,659.20 is: 413,488.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,315.20 : 1,212,472.80 = 275,659.20 : x
  2. Step 2: Convert to fraction form
    808,315.20/1,212,472.80 = 275,659.20/x
  3. Step 3: Cross multiply
    808,315.20x = 1,212,472.80 × 275,659.20
  4. Step 4: Simplify right side
    808,315.20x = 334,229,282,069.76
  5. Step 5: Solve for x
    x = 334,229,282,069.76/808,315.20
  6. Step 6: Final answer
    x = 413,488.80

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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.