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Finding the Fourth Proportional to 522.51, 781.59 and 483.63

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Solution

The fourth proportional to 522.51, 781.59 and 483.63 is: 723.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    522.51 : 781.59 = 483.63 : x
  2. Step 2: Convert to fraction form
    522.51/781.59 = 483.63/x
  3. Step 3: Cross multiply
    522.51x = 781.59 × 483.63
  4. Step 4: Simplify right side
    522.51x = 378,000.37
  5. Step 5: Solve for x
    x = 378,000.37/522.51
  6. Step 6: Final answer
    x = 723.43

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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.