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Finding the Fourth Proportional to 679,282.80, 1,018,891.80 and 229,959.60

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Solution

The fourth proportional to 679,282.80, 1,018,891.80 and 229,959.60 is: 344,928.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,282.80 : 1,018,891.80 = 229,959.60 : x
  2. Step 2: Convert to fraction form
    679,282.80/1,018,891.80 = 229,959.60/x
  3. Step 3: Cross multiply
    679,282.80x = 1,018,891.80 × 229,959.60
  4. Step 4: Simplify right side
    679,282.80x = 234,303,950,771.28
  5. Step 5: Solve for x
    x = 234,303,950,771.28/679,282.80
  6. Step 6: Final answer
    x = 344,928.43

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1.5x scale

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.