Home / 1,028,680.10-1,542,372.15-430,057.70

Finding the Fourth Proportional to 1,028,680.10, 1,542,372.15 and 430,057.70

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Solution

The fourth proportional to 1,028,680.10, 1,542,372.15 and 430,057.70 is: 644,815.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,680.10 : 1,542,372.15 = 430,057.70 : x
  2. Step 2: Convert to fraction form
    1,028,680.10/1,542,372.15 = 430,057.70/x
  3. Step 3: Cross multiply
    1,028,680.10x = 1,542,372.15 × 430,057.70
  4. Step 4: Simplify right side
    1,028,680.10x = 663,309,019,373.06
  5. Step 5: Solve for x
    x = 663,309,019,373.06/1,028,680.10
  6. Step 6: Final answer
    x = 644,815.64

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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.