Home / 1,328,271.72-1,833,156.16-812,327.43

Finding the Fourth Proportional to 1,328,271.72, 1,833,156.16 and 812,327.43

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Solution

The fourth proportional to 1,328,271.72, 1,833,156.16 and 812,327.43 is: 1,121,098.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,271.72 : 1,833,156.16 = 812,327.43 : x
  2. Step 2: Convert to fraction form
    1,328,271.72/1,833,156.16 = 812,327.43/x
  3. Step 3: Cross multiply
    1,328,271.72x = 1,833,156.16 × 812,327.43
  4. Step 4: Simplify right side
    1,328,271.72x = 1,489,123,037,084.99
  5. Step 5: Solve for x
    x = 1,489,123,037,084.99/1,328,271.72
  6. Step 6: Final answer
    x = 1,121,098.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.