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Finding the Fourth Proportional to 540,778.68, 810,730.60 and 330,345.54

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Solution

The fourth proportional to 540,778.68, 810,730.60 and 330,345.54 is: 495,251.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,778.68 : 810,730.60 = 330,345.54 : x
  2. Step 2: Convert to fraction form
    540,778.68/810,730.60 = 330,345.54/x
  3. Step 3: Cross multiply
    540,778.68x = 810,730.60 × 330,345.54
  4. Step 4: Simplify right side
    540,778.68x = 267,821,237,025.66
  5. Step 5: Solve for x
    x = 267,821,237,025.66/540,778.68
  6. Step 6: Final answer
    x = 495,251.10

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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.