Home / 3,280,077.80-4,920,807.90-1,385,844.20

Finding the Fourth Proportional to 3,280,077.80, 4,920,807.90 and 1,385,844.20

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Solution

The fourth proportional to 3,280,077.80, 4,920,807.90 and 1,385,844.20 is: 2,079,058.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280,077.80 : 4,920,807.90 = 1,385,844.20 : x
  2. Step 2: Convert to fraction form
    3,280,077.80/4,920,807.90 = 1,385,844.20/x
  3. Step 3: Cross multiply
    3,280,077.80x = 4,920,807.90 × 1,385,844.20
  4. Step 4: Simplify right side
    3,280,077.80x = 6,819,473,087,529.18
  5. Step 5: Solve for x
    x = 6,819,473,087,529.18/3,280,077.80
  6. Step 6: Final answer
    x = 2,079,058.33

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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.