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Finding the Fourth Proportional to 551.60, 760.55 and 433.34

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Solution

The fourth proportional to 551.60, 760.55 and 433.34 is: 597.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.60 : 760.55 = 433.34 : x
  2. Step 2: Convert to fraction form
    551.60/760.55 = 433.34/x
  3. Step 3: Cross multiply
    551.60x = 760.55 × 433.34
  4. Step 4: Simplify right side
    551.60x = 329,576.74
  5. Step 5: Solve for x
    x = 329,576.74/551.60
  6. Step 6: Final answer
    x = 597.49

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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.