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Finding the Fourth Proportional to 605,292.30, 907,675.77 and 205,825.80

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Solution

The fourth proportional to 605,292.30, 907,675.77 and 205,825.80 is: 308,649.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,292.30 : 907,675.77 = 205,825.80 : x
  2. Step 2: Convert to fraction form
    605,292.30/907,675.77 = 205,825.80/x
  3. Step 3: Cross multiply
    605,292.30x = 907,675.77 × 205,825.80
  4. Step 4: Simplify right side
    605,292.30x = 186,823,091,500.87
  5. Step 5: Solve for x
    x = 186,823,091,500.87/605,292.30
  6. Step 6: Final answer
    x = 308,649.38

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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.