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Finding the Fourth Proportional to 561,350.92, 774,655.23 and 306,696.64

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Solution

The fourth proportional to 561,350.92, 774,655.23 and 306,696.64 is: 423,236.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,350.92 : 774,655.23 = 306,696.64 : x
  2. Step 2: Convert to fraction form
    561,350.92/774,655.23 = 306,696.64/x
  3. Step 3: Cross multiply
    561,350.92x = 774,655.23 × 306,696.64
  4. Step 4: Simplify right side
    561,350.92x = 237,584,156,199.43
  5. Step 5: Solve for x
    x = 237,584,156,199.43/561,350.92
  6. Step 6: Final answer
    x = 423,236.42

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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.