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Finding the Fourth Proportional to 839,880.78, 1,259,810.24 and 208,800.06

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Solution

The fourth proportional to 839,880.78, 1,259,810.24 and 208,800.06 is: 313,197.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,880.78 : 1,259,810.24 = 208,800.06 : x
  2. Step 2: Convert to fraction form
    839,880.78/1,259,810.24 = 208,800.06/x
  3. Step 3: Cross multiply
    839,880.78x = 1,259,810.24 × 208,800.06
  4. Step 4: Simplify right side
    839,880.78x = 263,048,452,656.61
  5. Step 5: Solve for x
    x = 263,048,452,656.61/839,880.78
  6. Step 6: Final answer
    x = 313,197.37

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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.