Home / 739,991.40-1,109,987.10-266,692.20

Finding the Fourth Proportional to 739,991.40, 1,109,987.10 and 266,692.20

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Solution

The fourth proportional to 739,991.40, 1,109,987.10 and 266,692.20 is: 400,038.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,991.40 : 1,109,987.10 = 266,692.20 : x
  2. Step 2: Convert to fraction form
    739,991.40/1,109,987.10 = 266,692.20/x
  3. Step 3: Cross multiply
    739,991.40x = 1,109,987.10 × 266,692.20
  4. Step 4: Simplify right side
    739,991.40x = 296,024,901,670.62
  5. Step 5: Solve for x
    x = 296,024,901,670.62/739,991.40
  6. Step 6: Final answer
    x = 400,038.30

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Double scale
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Similar ratio
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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.