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Finding the Fourth Proportional to 554,986.53, 765,881.43 and 300,337.71

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Solution

The fourth proportional to 554,986.53, 765,881.43 and 300,337.71 is: 414,466.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,986.53 : 765,881.43 = 300,337.71 : x
  2. Step 2: Convert to fraction form
    554,986.53/765,881.43 = 300,337.71/x
  3. Step 3: Cross multiply
    554,986.53x = 765,881.43 × 300,337.71
  4. Step 4: Simplify right side
    554,986.53x = 230,023,074,817.73
  5. Step 5: Solve for x
    x = 230,023,074,817.73/554,986.53
  6. Step 6: Final answer
    x = 414,466.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.