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Finding the Fourth Proportional to 501,885.56, 692,604.60 and 287,034.68

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Solution

The fourth proportional to 501,885.56, 692,604.60 and 287,034.68 is: 396,109.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,885.56 : 692,604.60 = 287,034.68 : x
  2. Step 2: Convert to fraction form
    501,885.56/692,604.60 = 287,034.68/x
  3. Step 3: Cross multiply
    501,885.56x = 692,604.60 × 287,034.68
  4. Step 4: Simplify right side
    501,885.56x = 198,801,539,727.53
  5. Step 5: Solve for x
    x = 198,801,539,727.53/501,885.56
  6. Step 6: Final answer
    x = 396,109.30

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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.