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Finding the Fourth Proportional to 662,681.70, 994,314.15 and 307,512.90

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Solution

The fourth proportional to 662,681.70, 994,314.15 and 307,512.90 is: 461,404.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,681.70 : 994,314.15 = 307,512.90 : x
  2. Step 2: Convert to fraction form
    662,681.70/994,314.15 = 307,512.90/x
  3. Step 3: Cross multiply
    662,681.70x = 994,314.15 × 307,512.90
  4. Step 4: Simplify right side
    662,681.70x = 305,764,427,777.54
  5. Step 5: Solve for x
    x = 305,764,427,777.54/662,681.70
  6. Step 6: Final answer
    x = 461,404.66

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1.5x scale

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.