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Finding the Fourth Proportional to 522,682.40, 721,281.30 and 296,323.04

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Solution

The fourth proportional to 522,682.40, 721,281.30 and 296,323.04 is: 408,914.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,682.40 : 721,281.30 = 296,323.04 : x
  2. Step 2: Convert to fraction form
    522,682.40/721,281.30 = 296,323.04/x
  3. Step 3: Cross multiply
    522,682.40x = 721,281.30 × 296,323.04
  4. Step 4: Simplify right side
    522,682.40x = 213,732,267,511.15
  5. Step 5: Solve for x
    x = 213,732,267,511.15/522,682.40
  6. Step 6: Final answer
    x = 408,914.22

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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.