Home / 1,107,564.20-1,661,346.30-930,417.20

Finding the Fourth Proportional to 1,107,564.20, 1,661,346.30 and 930,417.20

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Solution

The fourth proportional to 1,107,564.20, 1,661,346.30 and 930,417.20 is: 1,395,625.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,564.20 : 1,661,346.30 = 930,417.20 : x
  2. Step 2: Convert to fraction form
    1,107,564.20/1,661,346.30 = 930,417.20/x
  3. Step 3: Cross multiply
    1,107,564.20x = 1,661,346.30 × 930,417.20
  4. Step 4: Simplify right side
    1,107,564.20x = 1,545,745,172,676.36
  5. Step 5: Solve for x
    x = 1,545,745,172,676.36/1,107,564.20
  6. Step 6: Final answer
    x = 1,395,625.80

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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.