Home / 808,521.20-1,212,781.80-275,962.40

Finding the Fourth Proportional to 808,521.20, 1,212,781.80 and 275,962.40

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Solution

The fourth proportional to 808,521.20, 1,212,781.80 and 275,962.40 is: 413,943.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,521.20 : 1,212,781.80 = 275,962.40 : x
  2. Step 2: Convert to fraction form
    808,521.20/1,212,781.80 = 275,962.40/x
  3. Step 3: Cross multiply
    808,521.20x = 1,212,781.80 × 275,962.40
  4. Step 4: Simplify right side
    808,521.20x = 334,682,176,204.32
  5. Step 5: Solve for x
    x = 334,682,176,204.32/808,521.20
  6. Step 6: Final answer
    x = 413,943.60

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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.