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Finding the Fourth Proportional to 730,307.78, 1,007,652 and 424,202.27

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Solution

The fourth proportional to 730,307.78, 1,007,652 and 424,202.27 is: 585,298.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,307.78 : 1,007,652 = 424,202.27 : x
  2. Step 2: Convert to fraction form
    730,307.78/1,007,652 = 424,202.27/x
  3. Step 3: Cross multiply
    730,307.78x = 1,007,652 × 424,202.27
  4. Step 4: Simplify right side
    730,307.78x = 427,448,260,731.78
  5. Step 5: Solve for x
    x = 427,448,260,731.78/730,307.78
  6. Step 6: Final answer
    x = 585,298.80

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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.