Home / 691,623.78-1,037,489.13-265,363.62

Finding the Fourth Proportional to 691,623.78, 1,037,489.13 and 265,363.62

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Solution

The fourth proportional to 691,623.78, 1,037,489.13 and 265,363.62 is: 398,065.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,623.78 : 1,037,489.13 = 265,363.62 : x
  2. Step 2: Convert to fraction form
    691,623.78/1,037,489.13 = 265,363.62/x
  3. Step 3: Cross multiply
    691,623.78x = 1,037,489.13 × 265,363.62
  4. Step 4: Simplify right side
    691,623.78x = 275,311,871,247.45
  5. Step 5: Solve for x
    x = 275,311,871,247.45/691,623.78
  6. Step 6: Final answer
    x = 398,065.94

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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.