Home / 422,983.34-583,856.60-378,143.02

Finding the Fourth Proportional to 422,983.34, 583,856.60 and 378,143.02

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Solution

The fourth proportional to 422,983.34, 583,856.60 and 378,143.02 is: 521,962.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,983.34 : 583,856.60 = 378,143.02 : x
  2. Step 2: Convert to fraction form
    422,983.34/583,856.60 = 378,143.02/x
  3. Step 3: Cross multiply
    422,983.34x = 583,856.60 × 378,143.02
  4. Step 4: Simplify right side
    422,983.34x = 220,781,297,970.93
  5. Step 5: Solve for x
    x = 220,781,297,970.93/422,983.34
  6. Step 6: Final answer
    x = 521,962.16

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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.