Home / 638,298.60-956,633.85-338,922.60

Finding the Fourth Proportional to 638,298.60, 956,633.85 and 338,922.60

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Solution

The fourth proportional to 638,298.60, 956,633.85 and 338,922.60 is: 507,951.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,298.60 : 956,633.85 = 338,922.60 : x
  2. Step 2: Convert to fraction form
    638,298.60/956,633.85 = 338,922.60/x
  3. Step 3: Cross multiply
    638,298.60x = 956,633.85 × 338,922.60
  4. Step 4: Simplify right side
    638,298.60x = 324,224,831,690.01
  5. Step 5: Solve for x
    x = 324,224,831,690.01/638,298.60
  6. Step 6: Final answer
    x = 507,951.66

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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.