Home / 921,199.84-1,380,863.63-381,749.61

Finding the Fourth Proportional to 921,199.84, 1,380,863.63 and 381,749.61

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Solution

The fourth proportional to 921,199.84, 1,380,863.63 and 381,749.61 is: 572,236.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,199.84 : 1,380,863.63 = 381,749.61 : x
  2. Step 2: Convert to fraction form
    921,199.84/1,380,863.63 = 381,749.61/x
  3. Step 3: Cross multiply
    921,199.84x = 1,380,863.63 × 381,749.61
  4. Step 4: Simplify right side
    921,199.84x = 527,144,153,170.06
  5. Step 5: Solve for x
    x = 527,144,153,170.06/921,199.84
  6. Step 6: Final answer
    x = 572,236.48

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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.