Home / 784,715.89-1,174,014.55-687,884.43

Finding the Fourth Proportional to 784,715.89, 1,174,014.55 and 687,884.43

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Solution

The fourth proportional to 784,715.89, 1,174,014.55 and 687,884.43 is: 1,029,144.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,715.89 : 1,174,014.55 = 687,884.43 : x
  2. Step 2: Convert to fraction form
    784,715.89/1,174,014.55 = 687,884.43/x
  3. Step 3: Cross multiply
    784,715.89x = 1,174,014.55 × 687,884.43
  4. Step 4: Simplify right side
    784,715.89x = 807,586,329,538.46
  5. Step 5: Solve for x
    x = 807,586,329,538.46/784,715.89
  6. Step 6: Final answer
    x = 1,029,144.87

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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.