Home / 831,115.41-1,146,889.82-482,228.87

Finding the Fourth Proportional to 831,115.41, 1,146,889.82 and 482,228.87

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Solution

The fourth proportional to 831,115.41, 1,146,889.82 and 482,228.87 is: 665,447.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,115.41 : 1,146,889.82 = 482,228.87 : x
  2. Step 2: Convert to fraction form
    831,115.41/1,146,889.82 = 482,228.87/x
  3. Step 3: Cross multiply
    831,115.41x = 1,146,889.82 × 482,228.87
  4. Step 4: Simplify right side
    831,115.41x = 553,063,383,574.76
  5. Step 5: Solve for x
    x = 553,063,383,574.76/831,115.41
  6. Step 6: Final answer
    x = 665,447.16

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Double scale
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1.5x scale

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.