Home / 1,269,682.11-1,752,158.81-688,905.05

Finding the Fourth Proportional to 1,269,682.11, 1,752,158.81 and 688,905.05

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Solution

The fourth proportional to 1,269,682.11, 1,752,158.81 and 688,905.05 is: 950,687.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269,682.11 : 1,752,158.81 = 688,905.05 : x
  2. Step 2: Convert to fraction form
    1,269,682.11/1,752,158.81 = 688,905.05/x
  3. Step 3: Cross multiply
    1,269,682.11x = 1,752,158.81 × 688,905.05
  4. Step 4: Simplify right side
    1,269,682.11x = 1,207,071,045,572.46
  5. Step 5: Solve for x
    x = 1,207,071,045,572.46/1,269,682.11
  6. Step 6: Final answer
    x = 950,687.61

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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.