Home / 1,293,913.92-1,785,577.44-720,941.76

Finding the Fourth Proportional to 1,293,913.92, 1,785,577.44 and 720,941.76

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Solution

The fourth proportional to 1,293,913.92, 1,785,577.44 and 720,941.76 is: 994,886.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,913.92 : 1,785,577.44 = 720,941.76 : x
  2. Step 2: Convert to fraction form
    1,293,913.92/1,785,577.44 = 720,941.76/x
  3. Step 3: Cross multiply
    1,293,913.92x = 1,785,577.44 × 720,941.76
  4. Step 4: Simplify right side
    1,293,913.92x = 1,287,297,342,209.89
  5. Step 5: Solve for x
    x = 1,287,297,342,209.89/1,293,913.92
  6. Step 6: Final answer
    x = 994,886.38

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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.