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Finding the Fourth Proportional to 520.16, 778.98 and 501.53

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Solution

The fourth proportional to 520.16, 778.98 and 501.53 is: 751.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    520.16 : 778.98 = 501.53 : x
  2. Step 2: Convert to fraction form
    520.16/778.98 = 501.53/x
  3. Step 3: Cross multiply
    520.16x = 778.98 × 501.53
  4. Step 4: Simplify right side
    520.16x = 390,681.84
  5. Step 5: Solve for x
    x = 390,681.84/520.16
  6. Step 6: Final answer
    x = 751.08

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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.