Home / 615,429.62-848,623.36-400,170.50

Finding the Fourth Proportional to 615,429.62, 848,623.36 and 400,170.50

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Solution

The fourth proportional to 615,429.62, 848,623.36 and 400,170.50 is: 551,799.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,429.62 : 848,623.36 = 400,170.50 : x
  2. Step 2: Convert to fraction form
    615,429.62/848,623.36 = 400,170.50/x
  3. Step 3: Cross multiply
    615,429.62x = 848,623.36 × 400,170.50
  4. Step 4: Simplify right side
    615,429.62x = 339,594,034,282.88
  5. Step 5: Solve for x
    x = 339,594,034,282.88/615,429.62
  6. Step 6: Final answer
    x = 551,799.95

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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.