Home / 380,395.67-524,939.60-210,626.15

Finding the Fourth Proportional to 380,395.67, 524,939.60 and 210,626.15

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Solution

The fourth proportional to 380,395.67, 524,939.60 and 210,626.15 is: 290,660.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,395.67 : 524,939.60 = 210,626.15 : x
  2. Step 2: Convert to fraction form
    380,395.67/524,939.60 = 210,626.15/x
  3. Step 3: Cross multiply
    380,395.67x = 524,939.60 × 210,626.15
  4. Step 4: Simplify right side
    380,395.67x = 110,566,004,832.41
  5. Step 5: Solve for x
    x = 110,566,004,832.41/380,395.67
  6. Step 6: Final answer
    x = 290,660.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.