Home / 839,830.78-1,259,487.78-240,631.39

Finding the Fourth Proportional to 839,830.78, 1,259,487.78 and 240,631.39

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Solution

The fourth proportional to 839,830.78, 1,259,487.78 and 240,631.39 is: 360,873.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,830.78 : 1,259,487.78 = 240,631.39 : x
  2. Step 2: Convert to fraction form
    839,830.78/1,259,487.78 = 240,631.39/x
  3. Step 3: Cross multiply
    839,830.78x = 1,259,487.78 × 240,631.39
  4. Step 4: Simplify right side
    839,830.78x = 303,072,295,189.41
  5. Step 5: Solve for x
    x = 303,072,295,189.41/839,830.78
  6. Step 6: Final answer
    x = 360,873.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.