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Finding the Fourth Proportional to 530.48, 793.72 and 501.20

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Solution

The fourth proportional to 530.48, 793.72 and 501.20 is: 749.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.48 : 793.72 = 501.20 : x
  2. Step 2: Convert to fraction form
    530.48/793.72 = 501.20/x
  3. Step 3: Cross multiply
    530.48x = 793.72 × 501.20
  4. Step 4: Simplify right side
    530.48x = 397,812.46
  5. Step 5: Solve for x
    x = 397,812.46/530.48
  6. Step 6: Final answer
    x = 749.91

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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.