Home / 812,260.66-1,219,509.06-413,171.50

Finding the Fourth Proportional to 812,260.66, 1,219,509.06 and 413,171.50

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Solution

The fourth proportional to 812,260.66, 1,219,509.06 and 413,171.50 is: 620,325.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,260.66 : 1,219,509.06 = 413,171.50 : x
  2. Step 2: Convert to fraction form
    812,260.66/1,219,509.06 = 413,171.50/x
  3. Step 3: Cross multiply
    812,260.66x = 1,219,509.06 × 413,171.50
  4. Step 4: Simplify right side
    812,260.66x = 503,866,387,583.79
  5. Step 5: Solve for x
    x = 503,866,387,583.79/812,260.66
  6. Step 6: Final answer
    x = 620,325.98

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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.