Home / 459,211.24-688,817.94-143,668.72

Finding the Fourth Proportional to 459,211.24, 688,817.94 and 143,668.72

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Solution

The fourth proportional to 459,211.24, 688,817.94 and 143,668.72 is: 215,503.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,211.24 : 688,817.94 = 143,668.72 : x
  2. Step 2: Convert to fraction form
    459,211.24/688,817.94 = 143,668.72/x
  3. Step 3: Cross multiply
    459,211.24x = 688,817.94 × 143,668.72
  4. Step 4: Simplify right side
    459,211.24x = 98,961,591,752.84
  5. Step 5: Solve for x
    x = 98,961,591,752.84/459,211.24
  6. Step 6: Final answer
    x = 215,503.42

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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.