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Finding the Fourth Proportional to 540,167.92, 810,426.84 and 259,648.72

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Solution

The fourth proportional to 540,167.92, 810,426.84 and 259,648.72 is: 389,557.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,167.92 : 810,426.84 = 259,648.72 : x
  2. Step 2: Convert to fraction form
    540,167.92/810,426.84 = 259,648.72/x
  3. Step 3: Cross multiply
    540,167.92x = 810,426.84 × 259,648.72
  4. Step 4: Simplify right side
    540,167.92x = 210,426,291,659.65
  5. Step 5: Solve for x
    x = 210,426,291,659.65/540,167.92
  6. Step 6: Final answer
    x = 389,557.18

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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.