Home / 813,063.35-1,220,712.23-413,972.30

Finding the Fourth Proportional to 813,063.35, 1,220,712.23 and 413,972.30

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Solution

The fourth proportional to 813,063.35, 1,220,712.23 and 413,972.30 is: 621,527.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,063.35 : 1,220,712.23 = 413,972.30 : x
  2. Step 2: Convert to fraction form
    813,063.35/1,220,712.23 = 413,972.30/x
  3. Step 3: Cross multiply
    813,063.35x = 1,220,712.23 × 413,972.30
  4. Step 4: Simplify right side
    813,063.35x = 505,341,053,577.94
  5. Step 5: Solve for x
    x = 505,341,053,577.94/813,063.35
  6. Step 6: Final answer
    x = 621,527.28

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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.