Home / 1,028,345.79-1,542,662.33-429,169.76

Finding the Fourth Proportional to 1,028,345.79, 1,542,662.33 and 429,169.76

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Solution

The fourth proportional to 1,028,345.79, 1,542,662.33 and 429,169.76 is: 643,814.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,345.79 : 1,542,662.33 = 429,169.76 : x
  2. Step 2: Convert to fraction form
    1,028,345.79/1,542,662.33 = 429,169.76/x
  3. Step 3: Cross multiply
    1,028,345.79x = 1,542,662.33 × 429,169.76
  4. Step 4: Simplify right side
    1,028,345.79x = 662,064,012,067.98
  5. Step 5: Solve for x
    x = 662,064,012,067.98/1,028,345.79
  6. Step 6: Final answer
    x = 643,814.58

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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.