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Finding the Fourth Proportional to 607,299.40, 910,949.10 and 207,904.60

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Solution

The fourth proportional to 607,299.40, 910,949.10 and 207,904.60 is: 311,856.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,299.40 : 910,949.10 = 207,904.60 : x
  2. Step 2: Convert to fraction form
    607,299.40/910,949.10 = 207,904.60/x
  3. Step 3: Cross multiply
    607,299.40x = 910,949.10 × 207,904.60
  4. Step 4: Simplify right side
    607,299.40x = 189,390,508,255.86
  5. Step 5: Solve for x
    x = 189,390,508,255.86/607,299.40
  6. Step 6: Final answer
    x = 311,856.90

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Similar ratio
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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.