Home / 1,309,434.58-1,964,234.90-410,911.78

Finding the Fourth Proportional to 1,309,434.58, 1,964,234.90 and 410,911.78

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Solution

The fourth proportional to 1,309,434.58, 1,964,234.90 and 410,911.78 is: 616,393.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,434.58 : 1,964,234.90 = 410,911.78 : x
  2. Step 2: Convert to fraction form
    1,309,434.58/1,964,234.90 = 410,911.78/x
  3. Step 3: Cross multiply
    1,309,434.58x = 1,964,234.90 × 410,911.78
  4. Step 4: Simplify right side
    1,309,434.58x = 807,127,259,097.12
  5. Step 5: Solve for x
    x = 807,127,259,097.12/1,309,434.58
  6. Step 6: Final answer
    x = 616,393.73

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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.