Home / 484,454.20-668,412.52-290,811.64

Finding the Fourth Proportional to 484,454.20, 668,412.52 and 290,811.64

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Solution

The fourth proportional to 484,454.20, 668,412.52 and 290,811.64 is: 401,239.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,454.20 : 668,412.52 = 290,811.64 : x
  2. Step 2: Convert to fraction form
    484,454.20/668,412.52 = 290,811.64/x
  3. Step 3: Cross multiply
    484,454.20x = 668,412.52 × 290,811.64
  4. Step 4: Simplify right side
    484,454.20x = 194,382,141,137.73
  5. Step 5: Solve for x
    x = 194,382,141,137.73/484,454.20
  6. Step 6: Final answer
    x = 401,239.46

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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.