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Finding the Fourth Proportional to 830.16, 1,244.12 and 500.69

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Solution

The fourth proportional to 830.16, 1,244.12 and 500.69 is: 750.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    830.16 : 1,244.12 = 500.69 : x
  2. Step 2: Convert to fraction form
    830.16/1,244.12 = 500.69/x
  3. Step 3: Cross multiply
    830.16x = 1,244.12 × 500.69
  4. Step 4: Simplify right side
    830.16x = 622,909.72
  5. Step 5: Solve for x
    x = 622,909.72/830.16
  6. Step 6: Final answer
    x = 750.35

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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.