Home / 705,450.15-1,057,450.47-278,812.62

Finding the Fourth Proportional to 705,450.15, 1,057,450.47 and 278,812.62

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Solution

The fourth proportional to 705,450.15, 1,057,450.47 and 278,812.62 is: 417,932.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,450.15 : 1,057,450.47 = 278,812.62 : x
  2. Step 2: Convert to fraction form
    705,450.15/1,057,450.47 = 278,812.62/x
  3. Step 3: Cross multiply
    705,450.15x = 1,057,450.47 × 278,812.62
  4. Step 4: Simplify right side
    705,450.15x = 294,830,536,060.93
  5. Step 5: Solve for x
    x = 294,830,536,060.93/705,450.15
  6. Step 6: Final answer
    x = 417,932.49

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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.