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Finding the Fourth Proportional to 540,614.49, 810,134.40 and 259,803.69

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Solution

The fourth proportional to 540,614.49, 810,134.40 and 259,803.69 is: 389,327.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,614.49 : 810,134.40 = 259,803.69 : x
  2. Step 2: Convert to fraction form
    540,614.49/810,134.40 = 259,803.69/x
  3. Step 3: Cross multiply
    540,614.49x = 810,134.40 × 259,803.69
  4. Step 4: Simplify right side
    540,614.49x = 210,475,906,515.94
  5. Step 5: Solve for x
    x = 210,475,906,515.94/540,614.49
  6. Step 6: Final answer
    x = 389,327.16

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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.