Home / 831,889.92-1,148,008.08-449,916.70

Finding the Fourth Proportional to 831,889.92, 1,148,008.08 and 449,916.70

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Solution

The fourth proportional to 831,889.92, 1,148,008.08 and 449,916.70 is: 620,885.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,889.92 : 1,148,008.08 = 449,916.70 : x
  2. Step 2: Convert to fraction form
    831,889.92/1,148,008.08 = 449,916.70/x
  3. Step 3: Cross multiply
    831,889.92x = 1,148,008.08 × 449,916.70
  4. Step 4: Simplify right side
    831,889.92x = 516,508,006,926.94
  5. Step 5: Solve for x
    x = 516,508,006,926.94/831,889.92
  6. Step 6: Final answer
    x = 620,885.04

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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.