Home / 725,111.26-1,087,688.45-346,071.96

Finding the Fourth Proportional to 725,111.26, 1,087,688.45 and 346,071.96

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Solution

The fourth proportional to 725,111.26, 1,087,688.45 and 346,071.96 is: 519,118.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,111.26 : 1,087,688.45 = 346,071.96 : x
  2. Step 2: Convert to fraction form
    725,111.26/1,087,688.45 = 346,071.96/x
  3. Step 3: Cross multiply
    725,111.26x = 1,087,688.45 × 346,071.96
  4. Step 4: Simplify right side
    725,111.26x = 376,418,474,626.04
  5. Step 5: Solve for x
    x = 376,418,474,626.04/725,111.26
  6. Step 6: Final answer
    x = 519,118.23

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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.