Home / 1,142,028.36-1,712,910.06-300,645.72

Finding the Fourth Proportional to 1,142,028.36, 1,712,910.06 and 300,645.72

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Solution

The fourth proportional to 1,142,028.36, 1,712,910.06 and 300,645.72 is: 450,933.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,028.36 : 1,712,910.06 = 300,645.72 : x
  2. Step 2: Convert to fraction form
    1,142,028.36/1,712,910.06 = 300,645.72/x
  3. Step 3: Cross multiply
    1,142,028.36x = 1,712,910.06 × 300,645.72
  4. Step 4: Simplify right side
    1,142,028.36x = 514,979,078,283.94
  5. Step 5: Solve for x
    x = 514,979,078,283.94/1,142,028.36
  6. Step 6: Final answer
    x = 450,933.70

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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.