Home / 3,085,156.80-4,626,979.92-1,288,055.12

Finding the Fourth Proportional to 3,085,156.80, 4,626,979.92 and 1,288,055.12

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Solution

The fourth proportional to 3,085,156.80, 4,626,979.92 and 1,288,055.12 is: 1,931,767.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,085,156.80 : 4,626,979.92 = 1,288,055.12 : x
  2. Step 2: Convert to fraction form
    3,085,156.80/4,626,979.92 = 1,288,055.12/x
  3. Step 3: Cross multiply
    3,085,156.80x = 4,626,979.92 × 1,288,055.12
  4. Step 4: Simplify right side
    3,085,156.80x = 5,959,805,176,093.19
  5. Step 5: Solve for x
    x = 5,959,805,176,093.19/3,085,156.80
  6. Step 6: Final answer
    x = 1,931,767.35

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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.