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Finding the Fourth Proportional to 612,805.68, 845,669.72 and 344,533.68

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Solution

The fourth proportional to 612,805.68, 845,669.72 and 344,533.68 is: 475,455.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,805.68 : 845,669.72 = 344,533.68 : x
  2. Step 2: Convert to fraction form
    612,805.68/845,669.72 = 344,533.68/x
  3. Step 3: Cross multiply
    612,805.68x = 845,669.72 × 344,533.68
  4. Step 4: Simplify right side
    612,805.68x = 291,361,700,696.17
  5. Step 5: Solve for x
    x = 291,361,700,696.17/612,805.68
  6. Step 6: Final answer
    x = 475,455.29

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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.