Home / 628,697.58-867,622.23-342,236.76

Finding the Fourth Proportional to 628,697.58, 867,622.23 and 342,236.76

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Solution

The fourth proportional to 628,697.58, 867,622.23 and 342,236.76 is: 472,297.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,697.58 : 867,622.23 = 342,236.76 : x
  2. Step 2: Convert to fraction form
    628,697.58/867,622.23 = 342,236.76/x
  3. Step 3: Cross multiply
    628,697.58x = 867,622.23 × 342,236.76
  4. Step 4: Simplify right side
    628,697.58x = 296,932,220,899.18
  5. Step 5: Solve for x
    x = 296,932,220,899.18/628,697.58
  6. Step 6: Final answer
    x = 472,297.38

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Double scale
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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.