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Finding the Fourth Proportional to 561,982.59, 775,300.77 and 368,436.78

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Solution

The fourth proportional to 561,982.59, 775,300.77 and 368,436.78 is: 508,288.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,982.59 : 775,300.77 = 368,436.78 : x
  2. Step 2: Convert to fraction form
    561,982.59/775,300.77 = 368,436.78/x
  3. Step 3: Cross multiply
    561,982.59x = 775,300.77 × 368,436.78
  4. Step 4: Simplify right side
    561,982.59x = 285,649,319,230.32
  5. Step 5: Solve for x
    x = 285,649,319,230.32/561,982.59
  6. Step 6: Final answer
    x = 508,288.56

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1.5x scale

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.