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Finding the Fourth Proportional to 612,004.94, 844,555.61 and 340,067.88

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Solution

The fourth proportional to 612,004.94, 844,555.61 and 340,067.88 is: 469,287.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,004.94 : 844,555.61 = 340,067.88 : x
  2. Step 2: Convert to fraction form
    612,004.94/844,555.61 = 340,067.88/x
  3. Step 3: Cross multiply
    612,004.94x = 844,555.61 × 340,067.88
  4. Step 4: Simplify right side
    612,004.94x = 287,206,234,134.47
  5. Step 5: Solve for x
    x = 287,206,234,134.47/612,004.94
  6. Step 6: Final answer
    x = 469,287.45

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1.5x scale

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.