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Finding the Fourth Proportional to 844.62, 1,265.30 and 555.45

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Solution

The fourth proportional to 844.62, 1,265.30 and 555.45 is: 832.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    844.62 : 1,265.30 = 555.45 : x
  2. Step 2: Convert to fraction form
    844.62/1,265.30 = 555.45/x
  3. Step 3: Cross multiply
    844.62x = 1,265.30 × 555.45
  4. Step 4: Simplify right side
    844.62x = 702,810.89
  5. Step 5: Solve for x
    x = 702,810.89/844.62
  6. Step 6: Final answer
    x = 832.10

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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.