Home / 1,281,099.53-1,767,917.79-708,139.55

Finding the Fourth Proportional to 1,281,099.53, 1,767,917.79 and 708,139.55

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Solution

The fourth proportional to 1,281,099.53, 1,767,917.79 and 708,139.55 is: 977,232.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,099.53 : 1,767,917.79 = 708,139.55 : x
  2. Step 2: Convert to fraction form
    1,281,099.53/1,767,917.79 = 708,139.55/x
  3. Step 3: Cross multiply
    1,281,099.53x = 1,767,917.79 × 708,139.55
  4. Step 4: Simplify right side
    1,281,099.53x = 1,251,932,499,408.01
  5. Step 5: Solve for x
    x = 1,251,932,499,408.01/1,281,099.53
  6. Step 6: Final answer
    x = 977,232.82

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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.