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Finding the Fourth Proportional to 555.92, 828.58 and 542.96

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Solution

The fourth proportional to 555.92, 828.58 and 542.96 is: 809.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.92 : 828.58 = 542.96 : x
  2. Step 2: Convert to fraction form
    555.92/828.58 = 542.96/x
  3. Step 3: Cross multiply
    555.92x = 828.58 × 542.96
  4. Step 4: Simplify right side
    555.92x = 449,885.80
  5. Step 5: Solve for x
    x = 449,885.80/555.92
  6. Step 6: Final answer
    x = 809.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.