Home / 725,199.78-1,087,492.14-345,681.48

Finding the Fourth Proportional to 725,199.78, 1,087,492.14 and 345,681.48

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Solution

The fourth proportional to 725,199.78, 1,087,492.14 and 345,681.48 is: 518,375.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,199.78 : 1,087,492.14 = 345,681.48 : x
  2. Step 2: Convert to fraction form
    725,199.78/1,087,492.14 = 345,681.48/x
  3. Step 3: Cross multiply
    725,199.78x = 1,087,492.14 × 345,681.48
  4. Step 4: Simplify right side
    725,199.78x = 375,925,892,443.57
  5. Step 5: Solve for x
    x = 375,925,892,443.57/725,199.78
  6. Step 6: Final answer
    x = 518,375.63

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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.