Home / 3,178,678.32-4,387,846.68-1,955,479.50

Finding the Fourth Proportional to 3,178,678.32, 4,387,846.68 and 1,955,479.50

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Solution

The fourth proportional to 3,178,678.32, 4,387,846.68 and 1,955,479.50 is: 2,699,343.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178,678.32 : 4,387,846.68 = 1,955,479.50 : x
  2. Step 2: Convert to fraction form
    3,178,678.32/4,387,846.68 = 1,955,479.50/x
  3. Step 3: Cross multiply
    3,178,678.32x = 4,387,846.68 × 1,955,479.50
  4. Step 4: Simplify right side
    3,178,678.32x = 8,580,344,231,883.06
  5. Step 5: Solve for x
    x = 8,580,344,231,883.06/3,178,678.32
  6. Step 6: Final answer
    x = 2,699,343.36

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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.