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Finding the Fourth Proportional to 561,037.01, 774,233.92 and 306,388.19

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Solution

The fourth proportional to 561,037.01, 774,233.92 and 306,388.19 is: 422,817.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,037.01 : 774,233.92 = 306,388.19 : x
  2. Step 2: Convert to fraction form
    561,037.01/774,233.92 = 306,388.19/x
  3. Step 3: Cross multiply
    561,037.01x = 774,233.92 × 306,388.19
  4. Step 4: Simplify right side
    561,037.01x = 237,216,129,385.41
  5. Step 5: Solve for x
    x = 237,216,129,385.41/561,037.01
  6. Step 6: Final answer
    x = 422,817.26

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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.