Home / 1,312,392.20-1,811,101.22-708,780.20

Finding the Fourth Proportional to 1,312,392.20, 1,811,101.22 and 708,780.20

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Solution

The fourth proportional to 1,312,392.20, 1,811,101.22 and 708,780.20 is: 978,116.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,392.20 : 1,811,101.22 = 708,780.20 : x
  2. Step 2: Convert to fraction form
    1,312,392.20/1,811,101.22 = 708,780.20/x
  3. Step 3: Cross multiply
    1,312,392.20x = 1,811,101.22 × 708,780.20
  4. Step 4: Simplify right side
    1,312,392.20x = 1,283,672,672,332.44
  5. Step 5: Solve for x
    x = 1,283,672,672,332.44/1,312,392.20
  6. Step 6: Final answer
    x = 978,116.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.