Home / 1,028,679.60-1,542,371.40-430,057.20

Finding the Fourth Proportional to 1,028,679.60, 1,542,371.40 and 430,057.20

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Solution

The fourth proportional to 1,028,679.60, 1,542,371.40 and 430,057.20 is: 644,814.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,679.60 : 1,542,371.40 = 430,057.20 : x
  2. Step 2: Convert to fraction form
    1,028,679.60/1,542,371.40 = 430,057.20/x
  3. Step 3: Cross multiply
    1,028,679.60x = 1,542,371.40 × 430,057.20
  4. Step 4: Simplify right side
    1,028,679.60x = 663,307,925,644.08
  5. Step 5: Solve for x
    x = 663,307,925,644.08/1,028,679.60
  6. Step 6: Final answer
    x = 644,814.89

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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.