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Finding the Fourth Proportional to 634,187.32, 950,211.16 and 313,912.12

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Solution

The fourth proportional to 634,187.32, 950,211.16 and 313,912.12 is: 470,338.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,187.32 : 950,211.16 = 313,912.12 : x
  2. Step 2: Convert to fraction form
    634,187.32/950,211.16 = 313,912.12/x
  3. Step 3: Cross multiply
    634,187.32x = 950,211.16 × 313,912.12
  4. Step 4: Simplify right side
    634,187.32x = 298,282,799,683.26
  5. Step 5: Solve for x
    x = 298,282,799,683.26/634,187.32
  6. Step 6: Final answer
    x = 470,338.64

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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.