Home / 3,178,402.76-4,386,281.94-1,728,195.56

Finding the Fourth Proportional to 3,178,402.76, 4,386,281.94 and 1,728,195.56

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Solution

The fourth proportional to 3,178,402.76, 4,386,281.94 and 1,728,195.56 is: 2,384,956.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178,402.76 : 4,386,281.94 = 1,728,195.56 : x
  2. Step 2: Convert to fraction form
    3,178,402.76/4,386,281.94 = 1,728,195.56/x
  3. Step 3: Cross multiply
    3,178,402.76x = 4,386,281.94 × 1,728,195.56
  4. Step 4: Simplify right side
    3,178,402.76x = 7,580,352,973,616.19
  5. Step 5: Solve for x
    x = 7,580,352,973,616.19/3,178,402.76
  6. Step 6: Final answer
    x = 2,384,956.70

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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.