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Finding the Fourth Proportional to 987,067.80, 1,480,601.70 and 874,874.70

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Solution

The fourth proportional to 987,067.80, 1,480,601.70 and 874,874.70 is: 1,312,312.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,067.80 : 1,480,601.70 = 874,874.70 : x
  2. Step 2: Convert to fraction form
    987,067.80/1,480,601.70 = 874,874.70/x
  3. Step 3: Cross multiply
    987,067.80x = 1,480,601.70 × 874,874.70
  4. Step 4: Simplify right side
    987,067.80x = 1,295,340,968,106.99
  5. Step 5: Solve for x
    x = 1,295,340,968,106.99/987,067.80
  6. Step 6: Final answer
    x = 1,312,312.05

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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.