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Finding the Fourth Proportional to 679,250.44, 938,187.71 and 495,197.54

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Solution

The fourth proportional to 679,250.44, 938,187.71 and 495,197.54 is: 683,971.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,250.44 : 938,187.71 = 495,197.54 : x
  2. Step 2: Convert to fraction form
    679,250.44/938,187.71 = 495,197.54/x
  3. Step 3: Cross multiply
    679,250.44x = 938,187.71 × 495,197.54
  4. Step 4: Simplify right side
    679,250.44x = 464,588,242,597.29
  5. Step 5: Solve for x
    x = 464,588,242,597.29/679,250.44
  6. Step 6: Final answer
    x = 683,971.94

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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.