Home / 719,138.74-1,079,189.66-298,415.02

Finding the Fourth Proportional to 719,138.74, 1,079,189.66 and 298,415.02

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Solution

The fourth proportional to 719,138.74, 1,079,189.66 and 298,415.02 is: 447,822.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,138.74 : 1,079,189.66 = 298,415.02 : x
  2. Step 2: Convert to fraction form
    719,138.74/1,079,189.66 = 298,415.02/x
  3. Step 3: Cross multiply
    719,138.74x = 1,079,189.66 × 298,415.02
  4. Step 4: Simplify right side
    719,138.74x = 322,046,403,972.69
  5. Step 5: Solve for x
    x = 322,046,403,972.69/719,138.74
  6. Step 6: Final answer
    x = 447,822.35

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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.