Home / 1,028,637.38-1,542,208.73-429,769.81

Finding the Fourth Proportional to 1,028,637.38, 1,542,208.73 and 429,769.81

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Solution

The fourth proportional to 1,028,637.38, 1,542,208.73 and 429,769.81 is: 644,342.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,637.38 : 1,542,208.73 = 429,769.81 : x
  2. Step 2: Convert to fraction form
    1,028,637.38/1,542,208.73 = 429,769.81/x
  3. Step 3: Cross multiply
    1,028,637.38x = 1,542,208.73 × 429,769.81
  4. Step 4: Simplify right side
    1,028,637.38x = 662,794,745,161.40
  5. Step 5: Solve for x
    x = 662,794,745,161.40/1,028,637.38
  6. Step 6: Final answer
    x = 644,342.47

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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.