Home / 915,899.32-1,373,568.88-633,405.36

Finding the Fourth Proportional to 915,899.32, 1,373,568.88 and 633,405.36

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Solution

The fourth proportional to 915,899.32, 1,373,568.88 and 633,405.36 is: 949,914.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,899.32 : 1,373,568.88 = 633,405.36 : x
  2. Step 2: Convert to fraction form
    915,899.32/1,373,568.88 = 633,405.36/x
  3. Step 3: Cross multiply
    915,899.32x = 1,373,568.88 × 633,405.36
  4. Step 4: Simplify right side
    915,899.32x = 870,025,890,921.20
  5. Step 5: Solve for x
    x = 870,025,890,921.20/915,899.32
  6. Step 6: Final answer
    x = 949,914.33

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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.