Home / 743,013.78-1,114,530.96-210,534.30

Finding the Fourth Proportional to 743,013.78, 1,114,530.96 and 210,534.30

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Solution

The fourth proportional to 743,013.78, 1,114,530.96 and 210,534.30 is: 315,804.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,013.78 : 1,114,530.96 = 210,534.30 : x
  2. Step 2: Convert to fraction form
    743,013.78/1,114,530.96 = 210,534.30/x
  3. Step 3: Cross multiply
    743,013.78x = 1,114,530.96 × 210,534.30
  4. Step 4: Simplify right side
    743,013.78x = 234,646,995,491.93
  5. Step 5: Solve for x
    x = 234,646,995,491.93/743,013.78
  6. Step 6: Final answer
    x = 315,804.37

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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.