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Finding the Fourth Proportional to 756,560.24, 1,133,423.40 and 678,662

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Solution

The fourth proportional to 756,560.24, 1,133,423.40 and 678,662 is: 1,016,721.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,560.24 : 1,133,423.40 = 678,662 : x
  2. Step 2: Convert to fraction form
    756,560.24/1,133,423.40 = 678,662/x
  3. Step 3: Cross multiply
    756,560.24x = 1,133,423.40 × 678,662
  4. Step 4: Simplify right side
    756,560.24x = 769,211,391,490.80
  5. Step 5: Solve for x
    x = 769,211,391,490.80/756,560.24
  6. Step 6: Final answer
    x = 1,016,721.94

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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.