Home / 663,228.90-995,037.08-213,939.79

Finding the Fourth Proportional to 663,228.90, 995,037.08 and 213,939.79

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Solution

The fourth proportional to 663,228.90, 995,037.08 and 213,939.79 is: 320,972.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,228.90 : 995,037.08 = 213,939.79 : x
  2. Step 2: Convert to fraction form
    663,228.90/995,037.08 = 213,939.79/x
  3. Step 3: Cross multiply
    663,228.90x = 995,037.08 × 213,939.79
  4. Step 4: Simplify right side
    663,228.90x = 212,878,020,380.12
  5. Step 5: Solve for x
    x = 212,878,020,380.12/663,228.90
  6. Step 6: Final answer
    x = 320,972.17

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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.