Home / 921,006.30-1,381,719.72-281,401.07

Finding the Fourth Proportional to 921,006.30, 1,381,719.72 and 281,401.07

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Solution

The fourth proportional to 921,006.30, 1,381,719.72 and 281,401.07 is: 422,165.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,006.30 : 1,381,719.72 = 281,401.07 : x
  2. Step 2: Convert to fraction form
    921,006.30/1,381,719.72 = 281,401.07/x
  3. Step 3: Cross multiply
    921,006.30x = 1,381,719.72 × 281,401.07
  4. Step 4: Simplify right side
    921,006.30x = 388,817,400,739.50
  5. Step 5: Solve for x
    x = 388,817,400,739.50/921,006.30
  6. Step 6: Final answer
    x = 422,165.84

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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.