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Finding the Fourth Proportional to 607,525.70, 911,069.85 and 307,906.70

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Solution

The fourth proportional to 607,525.70, 911,069.85 and 307,906.70 is: 461,749.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,525.70 : 911,069.85 = 307,906.70 : x
  2. Step 2: Convert to fraction form
    607,525.70/911,069.85 = 307,906.70/x
  3. Step 3: Cross multiply
    607,525.70x = 911,069.85 × 307,906.70
  4. Step 4: Simplify right side
    607,525.70x = 280,524,510,983.00
  5. Step 5: Solve for x
    x = 280,524,510,983.00/607,525.70
  6. Step 6: Final answer
    x = 461,749.21

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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.