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Finding the Fourth Proportional to 536,760.88, 740,421.15 and 321,776.04

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Solution

The fourth proportional to 536,760.88, 740,421.15 and 321,776.04 is: 443,865.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,760.88 : 740,421.15 = 321,776.04 : x
  2. Step 2: Convert to fraction form
    536,760.88/740,421.15 = 321,776.04/x
  3. Step 3: Cross multiply
    536,760.88x = 740,421.15 × 321,776.04
  4. Step 4: Simplify right side
    536,760.88x = 238,249,788,959.16
  5. Step 5: Solve for x
    x = 238,249,788,959.16/536,760.88
  6. Step 6: Final answer
    x = 443,865.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.