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Finding the Fourth Proportional to 615,820.45, 850,232.10 and 551,177.74

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Solution

The fourth proportional to 615,820.45, 850,232.10 and 551,177.74 is: 760,983.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,820.45 : 850,232.10 = 551,177.74 : x
  2. Step 2: Convert to fraction form
    615,820.45/850,232.10 = 551,177.74/x
  3. Step 3: Cross multiply
    615,820.45x = 850,232.10 × 551,177.74
  4. Step 4: Simplify right side
    615,820.45x = 468,629,006,585.69
  5. Step 5: Solve for x
    x = 468,629,006,585.69/615,820.45
  6. Step 6: Final answer
    x = 760,983.19

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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.