Home / 664,483.10-996,822.45-215,054.60

Finding the Fourth Proportional to 664,483.10, 996,822.45 and 215,054.60

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Solution

The fourth proportional to 664,483.10, 996,822.45 and 215,054.60 is: 322,613.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,483.10 : 996,822.45 = 215,054.60 : x
  2. Step 2: Convert to fraction form
    664,483.10/996,822.45 = 215,054.60/x
  3. Step 3: Cross multiply
    664,483.10x = 996,822.45 × 215,054.60
  4. Step 4: Simplify right side
    664,483.10x = 214,371,248,271.66
  5. Step 5: Solve for x
    x = 214,371,248,271.66/664,483.10
  6. Step 6: Final answer
    x = 322,613.55

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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.