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Finding the Fourth Proportional to 605,799.60, 907,921.80 and 368,890.80

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Solution

The fourth proportional to 605,799.60, 907,921.80 and 368,890.80 is: 552,862.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,799.60 : 907,921.80 = 368,890.80 : x
  2. Step 2: Convert to fraction form
    605,799.60/907,921.80 = 368,890.80/x
  3. Step 3: Cross multiply
    605,799.60x = 907,921.80 × 368,890.80
  4. Step 4: Simplify right side
    605,799.60x = 334,923,999,139.44
  5. Step 5: Solve for x
    x = 334,923,999,139.44/605,799.60
  6. Step 6: Final answer
    x = 552,862.69

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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.