Home / 831,747.06-1,246,587-381,990.78

Finding the Fourth Proportional to 831,747.06, 1,246,587 and 381,990.78

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Solution

The fourth proportional to 831,747.06, 1,246,587 and 381,990.78 is: 572,511.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,747.06 : 1,246,587 = 381,990.78 : x
  2. Step 2: Convert to fraction form
    831,747.06/1,246,587 = 381,990.78/x
  3. Step 3: Cross multiply
    831,747.06x = 1,246,587 × 381,990.78
  4. Step 4: Simplify right side
    831,747.06x = 476,184,740,467.86
  5. Step 5: Solve for x
    x = 476,184,740,467.86/831,747.06
  6. Step 6: Final answer
    x = 572,511.48

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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.