Home / 715,311.96-1,072,801.45-266,244.31

Finding the Fourth Proportional to 715,311.96, 1,072,801.45 and 266,244.31

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Solution

The fourth proportional to 715,311.96, 1,072,801.45 and 266,244.31 is: 399,304.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,311.96 : 1,072,801.45 = 266,244.31 : x
  2. Step 2: Convert to fraction form
    715,311.96/1,072,801.45 = 266,244.31/x
  3. Step 3: Cross multiply
    715,311.96x = 1,072,801.45 × 266,244.31
  4. Step 4: Simplify right side
    715,311.96x = 285,627,281,822.25
  5. Step 5: Solve for x
    x = 285,627,281,822.25/715,311.96
  6. Step 6: Final answer
    x = 399,304.50

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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.