Home / 821,687.40-1,233,798.30-448,439.40

Finding the Fourth Proportional to 821,687.40, 1,233,798.30 and 448,439.40

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Solution

The fourth proportional to 821,687.40, 1,233,798.30 and 448,439.40 is: 673,350.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,687.40 : 1,233,798.30 = 448,439.40 : x
  2. Step 2: Convert to fraction form
    821,687.40/1,233,798.30 = 448,439.40/x
  3. Step 3: Cross multiply
    821,687.40x = 1,233,798.30 × 448,439.40
  4. Step 4: Simplify right side
    821,687.40x = 553,283,769,373.02
  5. Step 5: Solve for x
    x = 553,283,769,373.02/821,687.40
  6. Step 6: Final answer
    x = 673,350.68

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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.