Home / 831,125.84-1,246,689.10-200,039.65

Finding the Fourth Proportional to 831,125.84, 1,246,689.10 and 200,039.65

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Solution

The fourth proportional to 831,125.84, 1,246,689.10 and 200,039.65 is: 300,059.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,125.84 : 1,246,689.10 = 200,039.65 : x
  2. Step 2: Convert to fraction form
    831,125.84/1,246,689.10 = 200,039.65/x
  3. Step 3: Cross multiply
    831,125.84x = 1,246,689.10 × 200,039.65
  4. Step 4: Simplify right side
    831,125.84x = 249,387,253,031.23
  5. Step 5: Solve for x
    x = 249,387,253,031.23/831,125.84
  6. Step 6: Final answer
    x = 300,059.56

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Double scale
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Similar ratio
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1.5x scale

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.