Home / 839,838.12-1,158,998.67-517,761.06

Finding the Fourth Proportional to 839,838.12, 1,158,998.67 and 517,761.06

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Solution

The fourth proportional to 839,838.12, 1,158,998.67 and 517,761.06 is: 714,523.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,838.12 : 1,158,998.67 = 517,761.06 : x
  2. Step 2: Convert to fraction form
    839,838.12/1,158,998.67 = 517,761.06/x
  3. Step 3: Cross multiply
    839,838.12x = 1,158,998.67 × 517,761.06
  4. Step 4: Simplify right side
    839,838.12x = 600,084,379,917.79
  5. Step 5: Solve for x
    x = 600,084,379,917.79/839,838.12
  6. Step 6: Final answer
    x = 714,523.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.