Home / 3,178,630.57-4,386,479.69-1,728,326.30

Finding the Fourth Proportional to 3,178,630.57, 4,386,479.69 and 1,728,326.30

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Solution

The fourth proportional to 3,178,630.57, 4,386,479.69 and 1,728,326.30 is: 2,385,073.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178,630.57 : 4,386,479.69 = 1,728,326.30 : x
  2. Step 2: Convert to fraction form
    3,178,630.57/4,386,479.69 = 1,728,326.30/x
  3. Step 3: Cross multiply
    3,178,630.57x = 4,386,479.69 × 1,728,326.30
  4. Step 4: Simplify right side
    3,178,630.57x = 7,581,268,227,929.86
  5. Step 5: Solve for x
    x = 7,581,268,227,929.86/3,178,630.57
  6. Step 6: Final answer
    x = 2,385,073.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.