Home / 399,219.14-599,141.56-278,490.82

Finding the Fourth Proportional to 399,219.14, 599,141.56 and 278,490.82

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Solution

The fourth proportional to 399,219.14, 599,141.56 and 278,490.82 is: 417,954.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,219.14 : 599,141.56 = 278,490.82 : x
  2. Step 2: Convert to fraction form
    399,219.14/599,141.56 = 278,490.82/x
  3. Step 3: Cross multiply
    399,219.14x = 599,141.56 × 278,490.82
  4. Step 4: Simplify right side
    399,219.14x = 166,855,424,340.48
  5. Step 5: Solve for x
    x = 166,855,424,340.48/399,219.14
  6. Step 6: Final answer
    x = 417,954.47

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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.