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Finding the Fourth Proportional to 540,820.28, 810,658.37 and 203,715.07

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Solution

The fourth proportional to 540,820.28, 810,658.37 and 203,715.07 is: 305,357.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,820.28 : 810,658.37 = 203,715.07 : x
  2. Step 2: Convert to fraction form
    540,820.28/810,658.37 = 203,715.07/x
  3. Step 3: Cross multiply
    540,820.28x = 810,658.37 × 203,715.07
  4. Step 4: Simplify right side
    540,820.28x = 165,143,325,073.28
  5. Step 5: Solve for x
    x = 165,143,325,073.28/540,820.28
  6. Step 6: Final answer
    x = 305,357.12

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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.