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Finding the Fourth Proportional to 634,404.41, 875,397.09 and 362,489.90

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Solution

The fourth proportional to 634,404.41, 875,397.09 and 362,489.90 is: 500,189.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,404.41 : 875,397.09 = 362,489.90 : x
  2. Step 2: Convert to fraction form
    634,404.41/875,397.09 = 362,489.90/x
  3. Step 3: Cross multiply
    634,404.41x = 875,397.09 × 362,489.90
  4. Step 4: Simplify right side
    634,404.41x = 317,322,601,801.94
  5. Step 5: Solve for x
    x = 317,322,601,801.94/634,404.41
  6. Step 6: Final answer
    x = 500,189.78

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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.