Home / 688,049.90-1,031,666.06-261,616.94

Finding the Fourth Proportional to 688,049.90, 1,031,666.06 and 261,616.94

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Solution

The fourth proportional to 688,049.90, 1,031,666.06 and 261,616.94 is: 392,269.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,049.90 : 1,031,666.06 = 261,616.94 : x
  2. Step 2: Convert to fraction form
    688,049.90/1,031,666.06 = 261,616.94/x
  3. Step 3: Cross multiply
    688,049.90x = 1,031,666.06 × 261,616.94
  4. Step 4: Simplify right side
    688,049.90x = 269,901,311,252.64
  5. Step 5: Solve for x
    x = 269,901,311,252.64/688,049.90
  6. Step 6: Final answer
    x = 392,269.97

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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.