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Finding the Fourth Proportional to 615,164.76, 848,397.24 and 400,226.40

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Solution

The fourth proportional to 615,164.76, 848,397.24 and 400,226.40 is: 551,967.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,164.76 : 848,397.24 = 400,226.40 : x
  2. Step 2: Convert to fraction form
    615,164.76/848,397.24 = 400,226.40/x
  3. Step 3: Cross multiply
    615,164.76x = 848,397.24 × 400,226.40
  4. Step 4: Simplify right side
    615,164.76x = 339,550,973,135.14
  5. Step 5: Solve for x
    x = 339,550,973,135.14/615,164.76
  6. Step 6: Final answer
    x = 551,967.53

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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.