Home / 454,877.64-681,979.50-217,994.76

Finding the Fourth Proportional to 454,877.64, 681,979.50 and 217,994.76

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Solution

The fourth proportional to 454,877.64, 681,979.50 and 217,994.76 is: 326,830.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,877.64 : 681,979.50 = 217,994.76 : x
  2. Step 2: Convert to fraction form
    454,877.64/681,979.50 = 217,994.76/x
  3. Step 3: Cross multiply
    454,877.64x = 681,979.50 × 217,994.76
  4. Step 4: Simplify right side
    454,877.64x = 148,667,957,427.42
  5. Step 5: Solve for x
    x = 148,667,957,427.42/454,877.64
  6. Step 6: Final answer
    x = 326,830.66

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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.