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Finding the Fourth Proportional to 510,765.28, 765,891.60 and 297,602.08

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Solution

The fourth proportional to 510,765.28, 765,891.60 and 297,602.08 is: 446,253.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,765.28 : 765,891.60 = 297,602.08 : x
  2. Step 2: Convert to fraction form
    510,765.28/765,891.60 = 297,602.08/x
  3. Step 3: Cross multiply
    510,765.28x = 765,891.60 × 297,602.08
  4. Step 4: Simplify right side
    510,765.28x = 227,930,933,214.53
  5. Step 5: Solve for x
    x = 227,930,933,214.53/510,765.28
  6. Step 6: Final answer
    x = 446,253.77

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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.