Home / 484,320.26-668,351.53-280,379.81

Finding the Fourth Proportional to 484,320.26, 668,351.53 and 280,379.81

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Solution

The fourth proportional to 484,320.26, 668,351.53 and 280,379.81 is: 386,918.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,320.26 : 668,351.53 = 280,379.81 : x
  2. Step 2: Convert to fraction form
    484,320.26/668,351.53 = 280,379.81/x
  3. Step 3: Cross multiply
    484,320.26x = 668,351.53 × 280,379.81
  4. Step 4: Simplify right side
    484,320.26x = 187,392,274,994.61
  5. Step 5: Solve for x
    x = 187,392,274,994.61/484,320.26
  6. Step 6: Final answer
    x = 386,918.10

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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.