Home / 1,389,441.30-2,083,643.55-547,818.90

Finding the Fourth Proportional to 1,389,441.30, 2,083,643.55 and 547,818.90

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Solution

The fourth proportional to 1,389,441.30, 2,083,643.55 and 547,818.90 is: 821,523.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,441.30 : 2,083,643.55 = 547,818.90 : x
  2. Step 2: Convert to fraction form
    1,389,441.30/2,083,643.55 = 547,818.90/x
  3. Step 3: Cross multiply
    1,389,441.30x = 2,083,643.55 × 547,818.90
  4. Step 4: Simplify right side
    1,389,441.30x = 1,141,459,317,553.10
  5. Step 5: Solve for x
    x = 1,141,459,317,553.10/1,389,441.30
  6. Step 6: Final answer
    x = 821,523.96

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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.