Home / 639,269.95-882,190.72-352,787.98

Finding the Fourth Proportional to 639,269.95, 882,190.72 and 352,787.98

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Solution

The fourth proportional to 639,269.95, 882,190.72 and 352,787.98 is: 486,846.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,269.95 : 882,190.72 = 352,787.98 : x
  2. Step 2: Convert to fraction form
    639,269.95/882,190.72 = 352,787.98/x
  3. Step 3: Cross multiply
    639,269.95x = 882,190.72 × 352,787.98
  4. Step 4: Simplify right side
    639,269.95x = 311,226,282,083.55
  5. Step 5: Solve for x
    x = 311,226,282,083.55/639,269.95
  6. Step 6: Final answer
    x = 486,846.41

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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.