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Finding the Fourth Proportional to 659,911.43, 910,677.77 and 358,105.43

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Solution

The fourth proportional to 659,911.43, 910,677.77 and 358,105.43 is: 494,185.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,911.43 : 910,677.77 = 358,105.43 : x
  2. Step 2: Convert to fraction form
    659,911.43/910,677.77 = 358,105.43/x
  3. Step 3: Cross multiply
    659,911.43x = 910,677.77 × 358,105.43
  4. Step 4: Simplify right side
    659,911.43x = 326,118,655,195.83
  5. Step 5: Solve for x
    x = 326,118,655,195.83/659,911.43
  6. Step 6: Final answer
    x = 494,185.49

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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.