Home / 1,381,688.28-2,069,532.72-670,221

Finding the Fourth Proportional to 1,381,688.28, 2,069,532.72 and 670,221

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Solution

The fourth proportional to 1,381,688.28, 2,069,532.72 and 670,221 is: 1,003,876.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,688.28 : 2,069,532.72 = 670,221 : x
  2. Step 2: Convert to fraction form
    1,381,688.28/2,069,532.72 = 670,221/x
  3. Step 3: Cross multiply
    1,381,688.28x = 2,069,532.72 × 670,221
  4. Step 4: Simplify right side
    1,381,688.28x = 1,387,044,289,131.12
  5. Step 5: Solve for x
    x = 1,387,044,289,131.12/1,381,688.28
  6. Step 6: Final answer
    x = 1,003,876.42

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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.