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Finding the Fourth Proportional to 515,964.62, 773,030.36 and 440,317.10

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Solution

The fourth proportional to 515,964.62, 773,030.36 and 440,317.10 is: 659,693.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,964.62 : 773,030.36 = 440,317.10 : x
  2. Step 2: Convert to fraction form
    515,964.62/773,030.36 = 440,317.10/x
  3. Step 3: Cross multiply
    515,964.62x = 773,030.36 × 440,317.10
  4. Step 4: Simplify right side
    515,964.62x = 340,378,486,327.16
  5. Step 5: Solve for x
    x = 340,378,486,327.16/515,964.62
  6. Step 6: Final answer
    x = 659,693.46

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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.