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Finding the Fourth Proportional to 561,099.46, 774,316.02 and 306,450.66

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Solution

The fourth proportional to 561,099.46, 774,316.02 and 306,450.66 is: 422,901.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,099.46 : 774,316.02 = 306,450.66 : x
  2. Step 2: Convert to fraction form
    561,099.46/774,316.02 = 306,450.66/x
  3. Step 3: Cross multiply
    561,099.46x = 774,316.02 × 306,450.66
  4. Step 4: Simplify right side
    561,099.46x = 237,289,655,377.57
  5. Step 5: Solve for x
    x = 237,289,655,377.57/561,099.46
  6. Step 6: Final answer
    x = 422,901.24

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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.