Home / 1,121,005.78-1,681,510.49-897,785.98

Finding the Fourth Proportional to 1,121,005.78, 1,681,510.49 and 897,785.98

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Solution

The fourth proportional to 1,121,005.78, 1,681,510.49 and 897,785.98 is: 1,346,680.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,005.78 : 1,681,510.49 = 897,785.98 : x
  2. Step 2: Convert to fraction form
    1,121,005.78/1,681,510.49 = 897,785.98/x
  3. Step 3: Cross multiply
    1,121,005.78x = 1,681,510.49 × 897,785.98
  4. Step 4: Simplify right side
    1,121,005.78x = 1,509,636,543,144.93
  5. Step 5: Solve for x
    x = 1,509,636,543,144.93/1,121,005.78
  6. Step 6: Final answer
    x = 1,346,680.43

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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.