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Finding the Fourth Proportional to 555.65, 766.89 and 462.27

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Solution

The fourth proportional to 555.65, 766.89 and 462.27 is: 638.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.65 : 766.89 = 462.27 : x
  2. Step 2: Convert to fraction form
    555.65/766.89 = 462.27/x
  3. Step 3: Cross multiply
    555.65x = 766.89 × 462.27
  4. Step 4: Simplify right side
    555.65x = 354,510.24
  5. Step 5: Solve for x
    x = 354,510.24/555.65
  6. Step 6: Final answer
    x = 638.02

Related Problems

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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.