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Finding the Fourth Proportional to 678,076.08, 935,750.52 and 376,275.12

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Solution

The fourth proportional to 678,076.08, 935,750.52 and 376,275.12 is: 519,262.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,076.08 : 935,750.52 = 376,275.12 : x
  2. Step 2: Convert to fraction form
    678,076.08/935,750.52 = 376,275.12/x
  3. Step 3: Cross multiply
    678,076.08x = 935,750.52 × 376,275.12
  4. Step 4: Simplify right side
    678,076.08x = 352,099,639,203.06
  5. Step 5: Solve for x
    x = 352,099,639,203.06/678,076.08
  6. Step 6: Final answer
    x = 519,262.73

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1.5x scale

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.