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Finding the Fourth Proportional to 510,030.70, 765,046.05 and 485,536.30

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Solution

The fourth proportional to 510,030.70, 765,046.05 and 485,536.30 is: 728,304.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,030.70 : 765,046.05 = 485,536.30 : x
  2. Step 2: Convert to fraction form
    510,030.70/765,046.05 = 485,536.30/x
  3. Step 3: Cross multiply
    510,030.70x = 765,046.05 × 485,536.30
  4. Step 4: Simplify right side
    510,030.70x = 371,457,628,446.62
  5. Step 5: Solve for x
    x = 371,457,628,446.62/510,030.70
  6. Step 6: Final answer
    x = 728,304.45

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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.