Home / 1,230,274.80-1,845,412.20-689,976.45

Finding the Fourth Proportional to 1,230,274.80, 1,845,412.20 and 689,976.45

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Solution

The fourth proportional to 1,230,274.80, 1,845,412.20 and 689,976.45 is: 1,034,964.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,274.80 : 1,845,412.20 = 689,976.45 : x
  2. Step 2: Convert to fraction form
    1,230,274.80/1,845,412.20 = 689,976.45/x
  3. Step 3: Cross multiply
    1,230,274.80x = 1,845,412.20 × 689,976.45
  4. Step 4: Simplify right side
    1,230,274.80x = 1,273,290,958,542.69
  5. Step 5: Solve for x
    x = 1,273,290,958,542.69/1,230,274.80
  6. Step 6: Final answer
    x = 1,034,964.68

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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.