Home / 2,590,872.80-3,886,309.20-817,714.40

Finding the Fourth Proportional to 2,590,872.80, 3,886,309.20 and 817,714.40

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Solution

The fourth proportional to 2,590,872.80, 3,886,309.20 and 817,714.40 is: 1,226,571.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,590,872.80 : 3,886,309.20 = 817,714.40 : x
  2. Step 2: Convert to fraction form
    2,590,872.80/3,886,309.20 = 817,714.40/x
  3. Step 3: Cross multiply
    2,590,872.80x = 3,886,309.20 × 817,714.40
  4. Step 4: Simplify right side
    2,590,872.80x = 3,177,890,995,692.48
  5. Step 5: Solve for x
    x = 3,177,890,995,692.48/2,590,872.80
  6. Step 6: Final answer
    x = 1,226,571.60

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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.