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Finding the Fourth Proportional to 615,983.09, 850,039.38 and 344,043

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Solution

The fourth proportional to 615,983.09, 850,039.38 and 344,043 is: 474,769.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,983.09 : 850,039.38 = 344,043 : x
  2. Step 2: Convert to fraction form
    615,983.09/850,039.38 = 344,043/x
  3. Step 3: Cross multiply
    615,983.09x = 850,039.38 × 344,043
  4. Step 4: Simplify right side
    615,983.09x = 292,450,098,413.34
  5. Step 5: Solve for x
    x = 292,450,098,413.34/615,983.09
  6. Step 6: Final answer
    x = 474,769.69

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1.5x scale

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.