Home / 714,550.16-1,071,009.89-287,812.85

Finding the Fourth Proportional to 714,550.16, 1,071,009.89 and 287,812.85

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Solution

The fourth proportional to 714,550.16, 1,071,009.89 and 287,812.85 is: 431,390.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,550.16 : 1,071,009.89 = 287,812.85 : x
  2. Step 2: Convert to fraction form
    714,550.16/1,071,009.89 = 287,812.85/x
  3. Step 3: Cross multiply
    714,550.16x = 1,071,009.89 × 287,812.85
  4. Step 4: Simplify right side
    714,550.16x = 308,250,404,183.57
  5. Step 5: Solve for x
    x = 308,250,404,183.57/714,550.16
  6. Step 6: Final answer
    x = 431,390.86

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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.