Home / 642,604.10-963,733.35-268,549.70

Finding the Fourth Proportional to 642,604.10, 963,733.35 and 268,549.70

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Solution

The fourth proportional to 642,604.10, 963,733.35 and 268,549.70 is: 402,752.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,604.10 : 963,733.35 = 268,549.70 : x
  2. Step 2: Convert to fraction form
    642,604.10/963,733.35 = 268,549.70/x
  3. Step 3: Cross multiply
    642,604.10x = 963,733.35 × 268,549.70
  4. Step 4: Simplify right side
    642,604.10x = 258,810,302,022.50
  5. Step 5: Solve for x
    x = 258,810,302,022.50/642,604.10
  6. Step 6: Final answer
    x = 402,752.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.