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Finding the Fourth Proportional to 637.77, 880.46 and 429.05

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Solution

The fourth proportional to 637.77, 880.46 and 429.05 is: 592.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.77 : 880.46 = 429.05 : x
  2. Step 2: Convert to fraction form
    637.77/880.46 = 429.05/x
  3. Step 3: Cross multiply
    637.77x = 880.46 × 429.05
  4. Step 4: Simplify right side
    637.77x = 377,758.60
  5. Step 5: Solve for x
    x = 377,758.60/637.77
  6. Step 6: Final answer
    x = 592.31

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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.