Home / 669,314.72-1,003,677.36-314,429.60

Finding the Fourth Proportional to 669,314.72, 1,003,677.36 and 314,429.60

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Solution

The fourth proportional to 669,314.72, 1,003,677.36 and 314,429.60 is: 471,505.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,314.72 : 1,003,677.36 = 314,429.60 : x
  2. Step 2: Convert to fraction form
    669,314.72/1,003,677.36 = 314,429.60/x
  3. Step 3: Cross multiply
    669,314.72x = 1,003,677.36 × 314,429.60
  4. Step 4: Simplify right side
    669,314.72x = 315,585,870,833.86
  5. Step 5: Solve for x
    x = 315,585,870,833.86/669,314.72
  6. Step 6: Final answer
    x = 471,505.95

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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.