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Finding the Fourth Proportional to 588.40, 880.20 and 530.80

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Solution

The fourth proportional to 588.40, 880.20 and 530.80 is: 794.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    588.40 : 880.20 = 530.80 : x
  2. Step 2: Convert to fraction form
    588.40/880.20 = 530.80/x
  3. Step 3: Cross multiply
    588.40x = 880.20 × 530.80
  4. Step 4: Simplify right side
    588.40x = 467,210.16
  5. Step 5: Solve for x
    x = 467,210.16/588.40
  6. Step 6: Final answer
    x = 794.03

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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.