Home / 664,291.36-996,595.20-215,012.30

Finding the Fourth Proportional to 664,291.36, 996,595.20 and 215,012.30

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Solution

The fourth proportional to 664,291.36, 996,595.20 and 215,012.30 is: 322,569.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,291.36 : 996,595.20 = 215,012.30 : x
  2. Step 2: Convert to fraction form
    664,291.36/996,595.20 = 215,012.30/x
  3. Step 3: Cross multiply
    664,291.36x = 996,595.20 × 215,012.30
  4. Step 4: Simplify right side
    664,291.36x = 214,280,226,120.96
  5. Step 5: Solve for x
    x = 214,280,226,120.96/664,291.36
  6. Step 6: Final answer
    x = 322,569.64

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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.