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Finding the Fourth Proportional to 678,082.50, 935,797.59 and 376,276.50

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Solution

The fourth proportional to 678,082.50, 935,797.59 and 376,276.50 is: 519,285.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,082.50 : 935,797.59 = 376,276.50 : x
  2. Step 2: Convert to fraction form
    678,082.50/935,797.59 = 376,276.50/x
  3. Step 3: Cross multiply
    678,082.50x = 935,797.59 × 376,276.50
  4. Step 4: Simplify right side
    678,082.50x = 352,118,641,873.64
  5. Step 5: Solve for x
    x = 352,118,641,873.64/678,082.50
  6. Step 6: Final answer
    x = 519,285.84

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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.