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Finding the Fourth Proportional to 619,963.96, 855,549.93 and 348,032.38

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Solution

The fourth proportional to 619,963.96, 855,549.93 and 348,032.38 is: 480,284.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,963.96 : 855,549.93 = 348,032.38 : x
  2. Step 2: Convert to fraction form
    619,963.96/855,549.93 = 348,032.38/x
  3. Step 3: Cross multiply
    619,963.96x = 855,549.93 × 348,032.38
  4. Step 4: Simplify right side
    619,963.96x = 297,759,078,346.73
  5. Step 5: Solve for x
    x = 297,759,078,346.73/619,963.96
  6. Step 6: Final answer
    x = 480,284.50

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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.