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Finding the Fourth Proportional to 899,672.61, 1,241,548.11 and 491,776.10

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Solution

The fourth proportional to 899,672.61, 1,241,548.11 and 491,776.10 is: 678,650.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,672.61 : 1,241,548.11 = 491,776.10 : x
  2. Step 2: Convert to fraction form
    899,672.61/1,241,548.11 = 491,776.10/x
  3. Step 3: Cross multiply
    899,672.61x = 1,241,548.11 × 491,776.10
  4. Step 4: Simplify right side
    899,672.61x = 610,563,681,290.43
  5. Step 5: Solve for x
    x = 610,563,681,290.43/899,672.61
  6. Step 6: Final answer
    x = 678,650.96

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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.