Home / 1,377,111.60-2,065,656.60-815,742

Finding the Fourth Proportional to 1,377,111.60, 2,065,656.60 and 815,742

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Solution

The fourth proportional to 1,377,111.60, 2,065,656.60 and 815,742 is: 1,223,606.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,111.60 : 2,065,656.60 = 815,742 : x
  2. Step 2: Convert to fraction form
    1,377,111.60/2,065,656.60 = 815,742/x
  3. Step 3: Cross multiply
    1,377,111.60x = 2,065,656.60 × 815,742
  4. Step 4: Simplify right side
    1,377,111.60x = 1,685,042,846,197.20
  5. Step 5: Solve for x
    x = 1,685,042,846,197.20/1,377,111.60
  6. Step 6: Final answer
    x = 1,223,606.60

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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.