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Finding the Fourth Proportional to 578,396.71, 798,187.33 and 323,747.95

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Solution

The fourth proportional to 578,396.71, 798,187.33 and 323,747.95 is: 446,772.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,396.71 : 798,187.33 = 323,747.95 : x
  2. Step 2: Convert to fraction form
    578,396.71/798,187.33 = 323,747.95/x
  3. Step 3: Cross multiply
    578,396.71x = 798,187.33 × 323,747.95
  4. Step 4: Simplify right side
    578,396.71x = 258,411,511,803.47
  5. Step 5: Solve for x
    x = 258,411,511,803.47/578,396.71
  6. Step 6: Final answer
    x = 446,772.10

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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.