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Finding the Fourth Proportional to 576.64, 793.35 and 503.13

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Solution

The fourth proportional to 576.64, 793.35 and 503.13 is: 692.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.64 : 793.35 = 503.13 : x
  2. Step 2: Convert to fraction form
    576.64/793.35 = 503.13/x
  3. Step 3: Cross multiply
    576.64x = 793.35 × 503.13
  4. Step 4: Simplify right side
    576.64x = 399,158.19
  5. Step 5: Solve for x
    x = 399,158.19/576.64
  6. Step 6: Final answer
    x = 692.21

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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.