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Finding the Fourth Proportional to 468,037.20, 702,055.80 and 438,512.70

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Solution

The fourth proportional to 468,037.20, 702,055.80 and 438,512.70 is: 657,769.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,037.20 : 702,055.80 = 438,512.70 : x
  2. Step 2: Convert to fraction form
    468,037.20/702,055.80 = 438,512.70/x
  3. Step 3: Cross multiply
    468,037.20x = 702,055.80 × 438,512.70
  4. Step 4: Simplify right side
    468,037.20x = 307,860,384,408.66
  5. Step 5: Solve for x
    x = 307,860,384,408.66/468,037.20
  6. Step 6: Final answer
    x = 657,769.05

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Similar ratio
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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.