Home / 1,280,999.52-1,767,871.08-708,027.48

Finding the Fourth Proportional to 1,280,999.52, 1,767,871.08 and 708,027.48

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Solution

The fourth proportional to 1,280,999.52, 1,767,871.08 and 708,027.48 is: 977,128.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,999.52 : 1,767,871.08 = 708,027.48 : x
  2. Step 2: Convert to fraction form
    1,280,999.52/1,767,871.08 = 708,027.48/x
  3. Step 3: Cross multiply
    1,280,999.52x = 1,767,871.08 × 708,027.48
  4. Step 4: Simplify right side
    1,280,999.52x = 1,251,701,305,737.28
  5. Step 5: Solve for x
    x = 1,251,701,305,737.28/1,280,999.52
  6. Step 6: Final answer
    x = 977,128.63

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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.