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Finding the Fourth Proportional to 669,810.10, 1,004,715.15 and 457,233.70

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Solution

The fourth proportional to 669,810.10, 1,004,715.15 and 457,233.70 is: 685,850.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,810.10 : 1,004,715.15 = 457,233.70 : x
  2. Step 2: Convert to fraction form
    669,810.10/1,004,715.15 = 457,233.70/x
  3. Step 3: Cross multiply
    669,810.10x = 1,004,715.15 × 457,233.70
  4. Step 4: Simplify right side
    669,810.10x = 459,389,625,480.56
  5. Step 5: Solve for x
    x = 459,389,625,480.56/669,810.10
  6. Step 6: Final answer
    x = 685,850.55

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Double scale
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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.