Home / 1,293,970.92-1,785,655.80-720,998.88

Finding the Fourth Proportional to 1,293,970.92, 1,785,655.80 and 720,998.88

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Solution

The fourth proportional to 1,293,970.92, 1,785,655.80 and 720,998.88 is: 994,965.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,970.92 : 1,785,655.80 = 720,998.88 : x
  2. Step 2: Convert to fraction form
    1,293,970.92/1,785,655.80 = 720,998.88/x
  3. Step 3: Cross multiply
    1,293,970.92x = 1,785,655.80 × 720,998.88
  4. Step 4: Simplify right side
    1,293,970.92x = 1,287,455,831,865.50
  5. Step 5: Solve for x
    x = 1,287,455,831,865.50/1,293,970.92
  6. Step 6: Final answer
    x = 994,965.04

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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.