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Finding the Fourth Proportional to 414,801.20, 620,646.60 and 377,476.40

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Solution

The fourth proportional to 414,801.20, 620,646.60 and 377,476.40 is: 564,799.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,801.20 : 620,646.60 = 377,476.40 : x
  2. Step 2: Convert to fraction form
    414,801.20/620,646.60 = 377,476.40/x
  3. Step 3: Cross multiply
    414,801.20x = 620,646.60 × 377,476.40
  4. Step 4: Simplify right side
    414,801.20x = 234,279,444,240.24
  5. Step 5: Solve for x
    x = 234,279,444,240.24/414,801.20
  6. Step 6: Final answer
    x = 564,799.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.