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Finding the Fourth Proportional to 536,622.71, 740,377.67 and 321,684.35

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Solution

The fourth proportional to 536,622.71, 740,377.67 and 321,684.35 is: 443,827.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,622.71 : 740,377.67 = 321,684.35 : x
  2. Step 2: Convert to fraction form
    536,622.71/740,377.67 = 321,684.35/x
  3. Step 3: Cross multiply
    536,622.71x = 740,377.67 × 321,684.35
  4. Step 4: Simplify right side
    536,622.71x = 238,167,904,218.15
  5. Step 5: Solve for x
    x = 238,167,904,218.15/536,622.71
  6. Step 6: Final answer
    x = 443,827.48

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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.