Home / 638,925.90-958,287.26-212,426.24

Finding the Fourth Proportional to 638,925.90, 958,287.26 and 212,426.24

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Solution

The fourth proportional to 638,925.90, 958,287.26 and 212,426.24 is: 318,605.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,925.90 : 958,287.26 = 212,426.24 : x
  2. Step 2: Convert to fraction form
    638,925.90/958,287.26 = 212,426.24/x
  3. Step 3: Cross multiply
    638,925.90x = 958,287.26 × 212,426.24
  4. Step 4: Simplify right side
    638,925.90x = 203,565,359,481.70
  5. Step 5: Solve for x
    x = 203,565,359,481.70/638,925.90
  6. Step 6: Final answer
    x = 318,605.58

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1.5x scale

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.