Home / 628,298.32-867,229.96-370,325.20

Finding the Fourth Proportional to 628,298.32, 867,229.96 and 370,325.20

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Solution

The fourth proportional to 628,298.32, 867,229.96 and 370,325.20 is: 511,153.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,298.32 : 867,229.96 = 370,325.20 : x
  2. Step 2: Convert to fraction form
    628,298.32/867,229.96 = 370,325.20/x
  3. Step 3: Cross multiply
    628,298.32x = 867,229.96 × 370,325.20
  4. Step 4: Simplify right side
    628,298.32x = 321,157,108,382.99
  5. Step 5: Solve for x
    x = 321,157,108,382.99/628,298.32
  6. Step 6: Final answer
    x = 511,153.86

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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.