Home / 660,664.40-990,783.35-187,222.64

Finding the Fourth Proportional to 660,664.40, 990,783.35 and 187,222.64

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Solution

The fourth proportional to 660,664.40, 990,783.35 and 187,222.64 is: 280,773.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,664.40 : 990,783.35 = 187,222.64 : x
  2. Step 2: Convert to fraction form
    660,664.40/990,783.35 = 187,222.64/x
  3. Step 3: Cross multiply
    660,664.40x = 990,783.35 × 187,222.64
  4. Step 4: Simplify right side
    660,664.40x = 185,497,074,455.04
  5. Step 5: Solve for x
    x = 185,497,074,455.04/660,664.40
  6. Step 6: Final answer
    x = 280,773.53

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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.