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Finding the Fourth Proportional to 721,328.82, 995,470.11 and 434,941.26

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Solution

The fourth proportional to 721,328.82, 995,470.11 and 434,941.26 is: 600,240.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,328.82 : 995,470.11 = 434,941.26 : x
  2. Step 2: Convert to fraction form
    721,328.82/995,470.11 = 434,941.26/x
  3. Step 3: Cross multiply
    721,328.82x = 995,470.11 × 434,941.26
  4. Step 4: Simplify right side
    721,328.82x = 432,971,023,935.74
  5. Step 5: Solve for x
    x = 432,971,023,935.74/721,328.82
  6. Step 6: Final answer
    x = 600,240.85

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