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Finding the Fourth Proportional to 739,807.64, 1,109,448.90 and 266,365.88

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Solution

The fourth proportional to 739,807.64, 1,109,448.90 and 266,365.88 is: 399,454.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,807.64 : 1,109,448.90 = 266,365.88 : x
  2. Step 2: Convert to fraction form
    739,807.64/1,109,448.90 = 266,365.88/x
  3. Step 3: Cross multiply
    739,807.64x = 1,109,448.90 × 266,365.88
  4. Step 4: Simplify right side
    739,807.64x = 295,519,332,563.53
  5. Step 5: Solve for x
    x = 295,519,332,563.53/739,807.64
  6. Step 6: Final answer
    x = 399,454.29

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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.