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Finding the Fourth Proportional to 612,019.53, 844,570.09 and 340,080.46

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Solution

The fourth proportional to 612,019.53, 844,570.09 and 340,080.46 is: 469,301.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,019.53 : 844,570.09 = 340,080.46 : x
  2. Step 2: Convert to fraction form
    612,019.53/844,570.09 = 340,080.46/x
  3. Step 3: Cross multiply
    612,019.53x = 844,570.09 × 340,080.46
  4. Step 4: Simplify right side
    612,019.53x = 287,221,781,747.82
  5. Step 5: Solve for x
    x = 287,221,781,747.82/612,019.53
  6. Step 6: Final answer
    x = 469,301.66

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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.