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Finding the Fourth Proportional to 665,139.60, 997,709.40 and 452,563.20

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Solution

The fourth proportional to 665,139.60, 997,709.40 and 452,563.20 is: 678,844.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,139.60 : 997,709.40 = 452,563.20 : x
  2. Step 2: Convert to fraction form
    665,139.60/997,709.40 = 452,563.20/x
  3. Step 3: Cross multiply
    665,139.60x = 997,709.40 × 452,563.20
  4. Step 4: Simplify right side
    665,139.60x = 451,526,558,734.08
  5. Step 5: Solve for x
    x = 451,526,558,734.08/665,139.60
  6. Step 6: Final answer
    x = 678,844.80

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.