Home / 831,461.79-1,247,660.46-452,409.87

Finding the Fourth Proportional to 831,461.79, 1,247,660.46 and 452,409.87

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Solution

The fourth proportional to 831,461.79, 1,247,660.46 and 452,409.87 is: 678,869.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,461.79 : 1,247,660.46 = 452,409.87 : x
  2. Step 2: Convert to fraction form
    831,461.79/1,247,660.46 = 452,409.87/x
  3. Step 3: Cross multiply
    831,461.79x = 1,247,660.46 × 452,409.87
  4. Step 4: Simplify right side
    831,461.79x = 564,453,906,512.74
  5. Step 5: Solve for x
    x = 564,453,906,512.74/831,461.79
  6. Step 6: Final answer
    x = 678,869.33

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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.