Home / 725,705.37-1,087,192.55-425,293.58

Finding the Fourth Proportional to 725,705.37, 1,087,192.55 and 425,293.58

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Solution

The fourth proportional to 725,705.37, 1,087,192.55 and 425,293.58 is: 637,140.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,705.37 : 1,087,192.55 = 425,293.58 : x
  2. Step 2: Convert to fraction form
    725,705.37/1,087,192.55 = 425,293.58/x
  3. Step 3: Cross multiply
    725,705.37x = 1,087,192.55 × 425,293.58
  4. Step 4: Simplify right side
    725,705.37x = 462,376,015,520.04
  5. Step 5: Solve for x
    x = 462,376,015,520.04/725,705.37
  6. Step 6: Final answer
    x = 637,140.13

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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.