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Finding the Fourth Proportional to 540,779.68, 810,732.10 and 330,346.54

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Solution

The fourth proportional to 540,779.68, 810,732.10 and 330,346.54 is: 495,252.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,779.68 : 810,732.10 = 330,346.54 : x
  2. Step 2: Convert to fraction form
    540,779.68/810,732.10 = 330,346.54/x
  3. Step 3: Cross multiply
    540,779.68x = 810,732.10 × 330,346.54
  4. Step 4: Simplify right side
    540,779.68x = 267,822,544,101.93
  5. Step 5: Solve for x
    x = 267,822,544,101.93/540,779.68
  6. Step 6: Final answer
    x = 495,252.60

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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.