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Finding the Fourth Proportional to 607,200.30, 911,383.65 and 308,018.70

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Solution

The fourth proportional to 607,200.30, 911,383.65 and 308,018.70 is: 462,323.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,200.30 : 911,383.65 = 308,018.70 : x
  2. Step 2: Convert to fraction form
    607,200.30/911,383.65 = 308,018.70/x
  3. Step 3: Cross multiply
    607,200.30x = 911,383.65 × 308,018.70
  4. Step 4: Simplify right side
    607,200.30x = 280,723,207,074.26
  5. Step 5: Solve for x
    x = 280,723,207,074.26/607,200.30
  6. Step 6: Final answer
    x = 462,323.89

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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.