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Finding the Fourth Proportional to 561,229.55, 774,496.64 and 303,106.64

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Solution

The fourth proportional to 561,229.55, 774,496.64 and 303,106.64 is: 418,287.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,229.55 : 774,496.64 = 303,106.64 : x
  2. Step 2: Convert to fraction form
    561,229.55/774,496.64 = 303,106.64/x
  3. Step 3: Cross multiply
    561,229.55x = 774,496.64 × 303,106.64
  4. Step 4: Simplify right side
    561,229.55x = 234,755,068,853.67
  5. Step 5: Solve for x
    x = 234,755,068,853.67/561,229.55
  6. Step 6: Final answer
    x = 418,287.08

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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.