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Finding the Fourth Proportional to 559.32, 834.18 and 530.16

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Solution

The fourth proportional to 559.32, 834.18 and 530.16 is: 790.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.32 : 834.18 = 530.16 : x
  2. Step 2: Convert to fraction form
    559.32/834.18 = 530.16/x
  3. Step 3: Cross multiply
    559.32x = 834.18 × 530.16
  4. Step 4: Simplify right side
    559.32x = 442,248.87
  5. Step 5: Solve for x
    x = 442,248.87/559.32
  6. Step 6: Final answer
    x = 790.69

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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.