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Finding the Fourth Proportional to 689,197.96, 950,953.82 and 402,662.72

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Solution

The fourth proportional to 689,197.96, 950,953.82 and 402,662.72 is: 555,593.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,197.96 : 950,953.82 = 402,662.72 : x
  2. Step 2: Convert to fraction form
    689,197.96/950,953.82 = 402,662.72/x
  3. Step 3: Cross multiply
    689,197.96x = 950,953.82 × 402,662.72
  4. Step 4: Simplify right side
    689,197.96x = 382,913,651,755.59
  5. Step 5: Solve for x
    x = 382,913,651,755.59/689,197.96
  6. Step 6: Final answer
    x = 555,593.13

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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.