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Finding the Fourth Proportional to 801,698.40, 1,203,422.40 and 446,529.60

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Solution

The fourth proportional to 801,698.40, 1,203,422.40 and 446,529.60 is: 670,281.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,698.40 : 1,203,422.40 = 446,529.60 : x
  2. Step 2: Convert to fraction form
    801,698.40/1,203,422.40 = 446,529.60/x
  3. Step 3: Cross multiply
    801,698.40x = 1,203,422.40 × 446,529.60
  4. Step 4: Simplify right side
    801,698.40x = 537,363,722,903.04
  5. Step 5: Solve for x
    x = 537,363,722,903.04/801,698.40
  6. Step 6: Final answer
    x = 670,281.65

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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.