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Finding the Fourth Proportional to 609,794.88, 841,809.45 and 428,662.08

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Solution

The fourth proportional to 609,794.88, 841,809.45 and 428,662.08 is: 591,759.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,794.88 : 841,809.45 = 428,662.08 : x
  2. Step 2: Convert to fraction form
    609,794.88/841,809.45 = 428,662.08/x
  3. Step 3: Cross multiply
    609,794.88x = 841,809.45 × 428,662.08
  4. Step 4: Simplify right side
    609,794.88x = 360,851,789,800.66
  5. Step 5: Solve for x
    x = 360,851,789,800.66/609,794.88
  6. Step 6: Final answer
    x = 591,759.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.