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Finding the Fourth Proportional to 579,179.54, 798,793.86 and 407,665.28

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Solution

The fourth proportional to 579,179.54, 798,793.86 and 407,665.28 is: 562,244.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,179.54 : 798,793.86 = 407,665.28 : x
  2. Step 2: Convert to fraction form
    579,179.54/798,793.86 = 407,665.28/x
  3. Step 3: Cross multiply
    579,179.54x = 798,793.86 × 407,665.28
  4. Step 4: Simplify right side
    579,179.54x = 325,640,518,605.21
  5. Step 5: Solve for x
    x = 325,640,518,605.21/579,179.54
  6. Step 6: Final answer
    x = 562,244.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.