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Finding the Fourth Proportional to 612,542, 845,307.96 and 344,270

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Solution

The fourth proportional to 612,542, 845,307.96 and 344,270 is: 475,092.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,542 : 845,307.96 = 344,270 : x
  2. Step 2: Convert to fraction form
    612,542/845,307.96 = 344,270/x
  3. Step 3: Cross multiply
    612,542x = 845,307.96 × 344,270
  4. Step 4: Simplify right side
    612,542x = 291,014,171,389.20
  5. Step 5: Solve for x
    x = 291,014,171,389.20/612,542
  6. Step 6: Final answer
    x = 475,092.60

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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.