Home / 389,825.28-584,746.56-109,336.32

Finding the Fourth Proportional to 389,825.28, 584,746.56 and 109,336.32

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Solution

The fourth proportional to 389,825.28, 584,746.56 and 109,336.32 is: 164,006.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,825.28 : 584,746.56 = 109,336.32 : x
  2. Step 2: Convert to fraction form
    389,825.28/584,746.56 = 109,336.32/x
  3. Step 3: Cross multiply
    389,825.28x = 584,746.56 × 109,336.32
  4. Step 4: Simplify right side
    389,825.28x = 63,934,037,003.06
  5. Step 5: Solve for x
    x = 63,934,037,003.06/389,825.28
  6. Step 6: Final answer
    x = 164,006.90

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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.