Home / 1,288,257.72-1,923,711.51-1,052,068.92

Finding the Fourth Proportional to 1,288,257.72, 1,923,711.51 and 1,052,068.92

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Solution

The fourth proportional to 1,288,257.72, 1,923,711.51 and 1,052,068.92 is: 1,571,018.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,257.72 : 1,923,711.51 = 1,052,068.92 : x
  2. Step 2: Convert to fraction form
    1,288,257.72/1,923,711.51 = 1,052,068.92/x
  3. Step 3: Cross multiply
    1,288,257.72x = 1,923,711.51 × 1,052,068.92
  4. Step 4: Simplify right side
    1,288,257.72x = 2,023,877,090,717.27
  5. Step 5: Solve for x
    x = 2,023,877,090,717.27/1,288,257.72
  6. Step 6: Final answer
    x = 1,571,018.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.