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Finding the Fourth Proportional to 555.93, 832.55 and 433.89

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Solution

The fourth proportional to 555.93, 832.55 and 433.89 is: 649.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.93 : 832.55 = 433.89 : x
  2. Step 2: Convert to fraction form
    555.93/832.55 = 433.89/x
  3. Step 3: Cross multiply
    555.93x = 832.55 × 433.89
  4. Step 4: Simplify right side
    555.93x = 361,232.95
  5. Step 5: Solve for x
    x = 361,232.95/555.93
  6. Step 6: Final answer
    x = 649.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.