Home / 719,643.59-1,079,469.09-298,919.87

Finding the Fourth Proportional to 719,643.59, 1,079,469.09 and 298,919.87

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Solution

The fourth proportional to 719,643.59, 1,079,469.09 and 298,919.87 is: 448,381.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,643.59 : 1,079,469.09 = 298,919.87 : x
  2. Step 2: Convert to fraction form
    719,643.59/1,079,469.09 = 298,919.87/x
  3. Step 3: Cross multiply
    719,643.59x = 1,079,469.09 × 298,919.87
  4. Step 4: Simplify right side
    719,643.59x = 322,674,760,051.82
  5. Step 5: Solve for x
    x = 322,674,760,051.82/719,643.59
  6. Step 6: Final answer
    x = 448,381.34

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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.