Home / 843,120.88-1,264,470.65-330,890.05

Finding the Fourth Proportional to 843,120.88, 1,264,470.65 and 330,890.05

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Solution

The fourth proportional to 843,120.88, 1,264,470.65 and 330,890.05 is: 496,252.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,120.88 : 1,264,470.65 = 330,890.05 : x
  2. Step 2: Convert to fraction form
    843,120.88/1,264,470.65 = 330,890.05/x
  3. Step 3: Cross multiply
    843,120.88x = 1,264,470.65 × 330,890.05
  4. Step 4: Simplify right side
    843,120.88x = 418,400,756,602.03
  5. Step 5: Solve for x
    x = 418,400,756,602.03/843,120.88
  6. Step 6: Final answer
    x = 496,252.40

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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.