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Finding the Fourth Proportional to 615,959.02, 850,029.96 and 361,314.46

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Solution

The fourth proportional to 615,959.02, 850,029.96 and 361,314.46 is: 498,617.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,959.02 : 850,029.96 = 361,314.46 : x
  2. Step 2: Convert to fraction form
    615,959.02/850,029.96 = 361,314.46/x
  3. Step 3: Cross multiply
    615,959.02x = 850,029.96 × 361,314.46
  4. Step 4: Simplify right side
    615,959.02x = 307,128,115,981.22
  5. Step 5: Solve for x
    x = 307,128,115,981.22/615,959.02
  6. Step 6: Final answer
    x = 498,617.77

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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.