Home / 1,152,081.40-1,728,122.10-774,167.80

Finding the Fourth Proportional to 1,152,081.40, 1,728,122.10 and 774,167.80

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Solution

The fourth proportional to 1,152,081.40, 1,728,122.10 and 774,167.80 is: 1,161,251.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,081.40 : 1,728,122.10 = 774,167.80 : x
  2. Step 2: Convert to fraction form
    1,152,081.40/1,728,122.10 = 774,167.80/x
  3. Step 3: Cross multiply
    1,152,081.40x = 1,728,122.10 × 774,167.80
  4. Step 4: Simplify right side
    1,152,081.40x = 1,337,856,484,288.38
  5. Step 5: Solve for x
    x = 1,337,856,484,288.38/1,152,081.40
  6. Step 6: Final answer
    x = 1,161,251.70

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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.