Home / 1,219,778.64-1,682,742.50-736,189.20

Finding the Fourth Proportional to 1,219,778.64, 1,682,742.50 and 736,189.20

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Solution

The fourth proportional to 1,219,778.64, 1,682,742.50 and 736,189.20 is: 1,015,607.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,778.64 : 1,682,742.50 = 736,189.20 : x
  2. Step 2: Convert to fraction form
    1,219,778.64/1,682,742.50 = 736,189.20/x
  3. Step 3: Cross multiply
    1,219,778.64x = 1,682,742.50 × 736,189.20
  4. Step 4: Simplify right side
    1,219,778.64x = 1,238,816,854,881
  5. Step 5: Solve for x
    x = 1,238,816,854,881/1,219,778.64
  6. Step 6: Final answer
    x = 1,015,607.93

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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.