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Finding the Fourth Proportional to 681,612.04, 940,625.46 and 395,298.40

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Solution

The fourth proportional to 681,612.04, 940,625.46 and 395,298.40 is: 545,512.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,612.04 : 940,625.46 = 395,298.40 : x
  2. Step 2: Convert to fraction form
    681,612.04/940,625.46 = 395,298.40/x
  3. Step 3: Cross multiply
    681,612.04x = 940,625.46 × 395,298.40
  4. Step 4: Simplify right side
    681,612.04x = 371,827,739,337.26
  5. Step 5: Solve for x
    x = 371,827,739,337.26/681,612.04
  6. Step 6: Final answer
    x = 545,512.28

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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.