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Finding the Fourth Proportional to 572.41, 790.58 and 376.79

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Solution

The fourth proportional to 572.41, 790.58 and 376.79 is: 520.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.41 : 790.58 = 376.79 : x
  2. Step 2: Convert to fraction form
    572.41/790.58 = 376.79/x
  3. Step 3: Cross multiply
    572.41x = 790.58 × 376.79
  4. Step 4: Simplify right side
    572.41x = 297,880.75
  5. Step 5: Solve for x
    x = 297,880.75/572.41
  6. Step 6: Final answer
    x = 520.40

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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.