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Finding the Fourth Proportional to 624,844.67, 862,288.80 and 338,365.89

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Solution

The fourth proportional to 624,844.67, 862,288.80 and 338,365.89 is: 466,946.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,844.67 : 862,288.80 = 338,365.89 : x
  2. Step 2: Convert to fraction form
    624,844.67/862,288.80 = 338,365.89/x
  3. Step 3: Cross multiply
    624,844.67x = 862,288.80 × 338,365.89
  4. Step 4: Simplify right side
    624,844.67x = 291,769,117,249.03
  5. Step 5: Solve for x
    x = 291,769,117,249.03/624,844.67
  6. Step 6: Final answer
    x = 466,946.64

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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.