Home / 1,481,766.40-2,223,686.40-640,921.60

Finding the Fourth Proportional to 1,481,766.40, 2,223,686.40 and 640,921.60

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Solution

The fourth proportional to 1,481,766.40, 2,223,686.40 and 640,921.60 is: 961,830.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,481,766.40 : 2,223,686.40 = 640,921.60 : x
  2. Step 2: Convert to fraction form
    1,481,766.40/2,223,686.40 = 640,921.60/x
  3. Step 3: Cross multiply
    1,481,766.40x = 2,223,686.40 × 640,921.60
  4. Step 4: Simplify right side
    1,481,766.40x = 1,425,208,645,386.24
  5. Step 5: Solve for x
    x = 1,425,208,645,386.24/1,481,766.40
  6. Step 6: Final answer
    x = 961,830.86

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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.