Home / 763,401.70-1,145,102.55-231,004.90

Finding the Fourth Proportional to 763,401.70, 1,145,102.55 and 231,004.90

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Solution

The fourth proportional to 763,401.70, 1,145,102.55 and 231,004.90 is: 346,507.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,401.70 : 1,145,102.55 = 231,004.90 : x
  2. Step 2: Convert to fraction form
    763,401.70/1,145,102.55 = 231,004.90/x
  3. Step 3: Cross multiply
    763,401.70x = 1,145,102.55 × 231,004.90
  4. Step 4: Simplify right side
    763,401.70x = 264,524,300,052.50
  5. Step 5: Solve for x
    x = 264,524,300,052.50/763,401.70
  6. Step 6: Final answer
    x = 346,507.35

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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.