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Finding the Fourth Proportional to 696,309.79, 960,024.48 and 497,636.44

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Solution

The fourth proportional to 696,309.79, 960,024.48 and 497,636.44 is: 686,107.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,309.79 : 960,024.48 = 497,636.44 : x
  2. Step 2: Convert to fraction form
    696,309.79/960,024.48 = 497,636.44/x
  3. Step 3: Cross multiply
    696,309.79x = 960,024.48 × 497,636.44
  4. Step 4: Simplify right side
    696,309.79x = 477,743,164,540.05
  5. Step 5: Solve for x
    x = 477,743,164,540.05/696,309.79
  6. Step 6: Final answer
    x = 686,107.21

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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.