Home / 678,101.50-935,823.90-376,295.50

Finding the Fourth Proportional to 678,101.50, 935,823.90 and 376,295.50

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Solution

The fourth proportional to 678,101.50, 935,823.90 and 376,295.50 is: 519,312.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,101.50 : 935,823.90 = 376,295.50 : x
  2. Step 2: Convert to fraction form
    678,101.50/935,823.90 = 376,295.50/x
  3. Step 3: Cross multiply
    678,101.50x = 935,823.90 × 376,295.50
  4. Step 4: Simplify right side
    678,101.50x = 352,146,322,362.45
  5. Step 5: Solve for x
    x = 352,146,322,362.45/678,101.50
  6. Step 6: Final answer
    x = 519,312.11

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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.