Home / 422,623.50-583,037.15-279,582.76

Finding the Fourth Proportional to 422,623.50, 583,037.15 and 279,582.76

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Solution

The fourth proportional to 422,623.50, 583,037.15 and 279,582.76 is: 385,702.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,623.50 : 583,037.15 = 279,582.76 : x
  2. Step 2: Convert to fraction form
    422,623.50/583,037.15 = 279,582.76/x
  3. Step 3: Cross multiply
    422,623.50x = 583,037.15 × 279,582.76
  4. Step 4: Simplify right side
    422,623.50x = 163,007,135,579.53
  5. Step 5: Solve for x
    x = 163,007,135,579.53/422,623.50
  6. Step 6: Final answer
    x = 385,702.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.