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Finding the Fourth Proportional to 581.79, 800.51 and 476.49

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Solution

The fourth proportional to 581.79, 800.51 and 476.49 is: 655.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    581.79 : 800.51 = 476.49 : x
  2. Step 2: Convert to fraction form
    581.79/800.51 = 476.49/x
  3. Step 3: Cross multiply
    581.79x = 800.51 × 476.49
  4. Step 4: Simplify right side
    581.79x = 381,432.63
  5. Step 5: Solve for x
    x = 381,432.63/581.79
  6. Step 6: Final answer
    x = 655.62

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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.