Home / 3,128,871.30-4,695,056.55-1,331,448.90

Finding the Fourth Proportional to 3,128,871.30, 4,695,056.55 and 1,331,448.90

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Solution

The fourth proportional to 3,128,871.30, 4,695,056.55 and 1,331,448.90 is: 1,997,917.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,871.30 : 4,695,056.55 = 1,331,448.90 : x
  2. Step 2: Convert to fraction form
    3,128,871.30/4,695,056.55 = 1,331,448.90/x
  3. Step 3: Cross multiply
    3,128,871.30x = 4,695,056.55 × 1,331,448.90
  4. Step 4: Simplify right side
    3,128,871.30x = 6,251,227,878,935.29
  5. Step 5: Solve for x
    x = 6,251,227,878,935.29/3,128,871.30
  6. Step 6: Final answer
    x = 1,997,917.87

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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.