Home / 821,424.30-1,232,136.45-731,222.70

Finding the Fourth Proportional to 821,424.30, 1,232,136.45 and 731,222.70

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Solution

The fourth proportional to 821,424.30, 1,232,136.45 and 731,222.70 is: 1,096,834.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,424.30 : 1,232,136.45 = 731,222.70 : x
  2. Step 2: Convert to fraction form
    821,424.30/1,232,136.45 = 731,222.70/x
  3. Step 3: Cross multiply
    821,424.30x = 1,232,136.45 × 731,222.70
  4. Step 4: Simplify right side
    821,424.30x = 900,966,141,737.42
  5. Step 5: Solve for x
    x = 900,966,141,737.42/821,424.30
  6. Step 6: Final answer
    x = 1,096,834.05

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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.