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Finding the Fourth Proportional to 624,857.34, 862,303.59 and 338,377.74

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Solution

The fourth proportional to 624,857.34, 862,303.59 and 338,377.74 is: 466,961.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,857.34 : 862,303.59 = 338,377.74 : x
  2. Step 2: Convert to fraction form
    624,857.34/862,303.59 = 338,377.74/x
  3. Step 3: Cross multiply
    624,857.34x = 862,303.59 × 338,377.74
  4. Step 4: Simplify right side
    624,857.34x = 291,784,339,978.09
  5. Step 5: Solve for x
    x = 291,784,339,978.09/624,857.34
  6. Step 6: Final answer
    x = 466,961.53

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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.