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Finding the Fourth Proportional to 880,331.64, 1,318,778.33 and 606,728.90

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Solution

The fourth proportional to 880,331.64, 1,318,778.33 and 606,728.90 is: 908,908.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,331.64 : 1,318,778.33 = 606,728.90 : x
  2. Step 2: Convert to fraction form
    880,331.64/1,318,778.33 = 606,728.90/x
  3. Step 3: Cross multiply
    880,331.64x = 1,318,778.33 × 606,728.90
  4. Step 4: Simplify right side
    880,331.64x = 800,140,915,877.20
  5. Step 5: Solve for x
    x = 800,140,915,877.20/880,331.64
  6. Step 6: Final answer
    x = 908,908.51

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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.