Home / 639,829.30-960,075.15-261,027.70

Finding the Fourth Proportional to 639,829.30, 960,075.15 and 261,027.70

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Solution

The fourth proportional to 639,829.30, 960,075.15 and 261,027.70 is: 391,676.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,829.30 : 960,075.15 = 261,027.70 : x
  2. Step 2: Convert to fraction form
    639,829.30/960,075.15 = 261,027.70/x
  3. Step 3: Cross multiply
    639,829.30x = 960,075.15 × 261,027.70
  4. Step 4: Simplify right side
    639,829.30x = 250,606,208,231.66
  5. Step 5: Solve for x
    x = 250,606,208,231.66/639,829.30
  6. Step 6: Final answer
    x = 391,676.67

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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.