Home / 1,230,644.40-1,844,929.80-639,668.40

Finding the Fourth Proportional to 1,230,644.40, 1,844,929.80 and 639,668.40

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Solution

The fourth proportional to 1,230,644.40, 1,844,929.80 and 639,668.40 is: 958,963.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,644.40 : 1,844,929.80 = 639,668.40 : x
  2. Step 2: Convert to fraction form
    1,230,644.40/1,844,929.80 = 639,668.40/x
  3. Step 3: Cross multiply
    1,230,644.40x = 1,844,929.80 × 639,668.40
  4. Step 4: Simplify right side
    1,230,644.40x = 1,180,143,293,278.32
  5. Step 5: Solve for x
    x = 1,180,143,293,278.32/1,230,644.40
  6. Step 6: Final answer
    x = 958,963.69

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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.