Home / 772,205.36-1,157,299.26-430,635.16

Finding the Fourth Proportional to 772,205.36, 1,157,299.26 and 430,635.16

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Solution

The fourth proportional to 772,205.36, 1,157,299.26 and 430,635.16 is: 645,390.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,205.36 : 1,157,299.26 = 430,635.16 : x
  2. Step 2: Convert to fraction form
    772,205.36/1,157,299.26 = 430,635.16/x
  3. Step 3: Cross multiply
    772,205.36x = 1,157,299.26 × 430,635.16
  4. Step 4: Simplify right side
    772,205.36x = 498,373,749,104.73
  5. Step 5: Solve for x
    x = 498,373,749,104.73/772,205.36
  6. Step 6: Final answer
    x = 645,390.17

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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.