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Finding the Fourth Proportional to 605,412.60, 906,369.30 and 369,216.60

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Solution

The fourth proportional to 605,412.60, 906,369.30 and 369,216.60 is: 552,757.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,412.60 : 906,369.30 = 369,216.60 : x
  2. Step 2: Convert to fraction form
    605,412.60/906,369.30 = 369,216.60/x
  3. Step 3: Cross multiply
    605,412.60x = 906,369.30 × 369,216.60
  4. Step 4: Simplify right side
    605,412.60x = 334,646,591,290.38
  5. Step 5: Solve for x
    x = 334,646,591,290.38/605,412.60
  6. Step 6: Final answer
    x = 552,757.89

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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.