Home / 839,264.23-1,259,021.39-299,478.40

Finding the Fourth Proportional to 839,264.23, 1,259,021.39 and 299,478.40

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Solution

The fourth proportional to 839,264.23, 1,259,021.39 and 299,478.40 is: 449,262.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,264.23 : 1,259,021.39 = 299,478.40 : x
  2. Step 2: Convert to fraction form
    839,264.23/1,259,021.39 = 299,478.40/x
  3. Step 3: Cross multiply
    839,264.23x = 1,259,021.39 × 299,478.40
  4. Step 4: Simplify right side
    839,264.23x = 377,049,711,442.98
  5. Step 5: Solve for x
    x = 377,049,711,442.98/839,264.23
  6. Step 6: Final answer
    x = 449,262.22

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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.