Home / 1,107,321.20-1,662,950.10-808,139.60

Finding the Fourth Proportional to 1,107,321.20, 1,662,950.10 and 808,139.60

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Solution

The fourth proportional to 1,107,321.20, 1,662,950.10 and 808,139.60 is: 1,213,645.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,321.20 : 1,662,950.10 = 808,139.60 : x
  2. Step 2: Convert to fraction form
    1,107,321.20/1,662,950.10 = 808,139.60/x
  3. Step 3: Cross multiply
    1,107,321.20x = 1,662,950.10 × 808,139.60
  4. Step 4: Simplify right side
    1,107,321.20x = 1,343,895,828,633.96
  5. Step 5: Solve for x
    x = 1,343,895,828,633.96/1,107,321.20
  6. Step 6: Final answer
    x = 1,213,645.89

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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.