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Finding the Fourth Proportional to 541.48, 807.47 and 520.48

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Solution

The fourth proportional to 541.48, 807.47 and 520.48 is: 776.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    541.48 : 807.47 = 520.48 : x
  2. Step 2: Convert to fraction form
    541.48/807.47 = 520.48/x
  3. Step 3: Cross multiply
    541.48x = 807.47 × 520.48
  4. Step 4: Simplify right side
    541.48x = 420,271.99
  5. Step 5: Solve for x
    x = 420,271.99/541.48
  6. Step 6: Final answer
    x = 776.15

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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.