Home / 668,043.71-1,001,986.62-188,307.49

Finding the Fourth Proportional to 668,043.71, 1,001,986.62 and 188,307.49

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Solution

The fourth proportional to 668,043.71, 1,001,986.62 and 188,307.49 is: 282,438.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,043.71 : 1,001,986.62 = 188,307.49 : x
  2. Step 2: Convert to fraction form
    668,043.71/1,001,986.62 = 188,307.49/x
  3. Step 3: Cross multiply
    668,043.71x = 1,001,986.62 × 188,307.49
  4. Step 4: Simplify right side
    668,043.71x = 188,681,585,425.78
  5. Step 5: Solve for x
    x = 188,681,585,425.78/668,043.71
  6. Step 6: Final answer
    x = 282,438.98

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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.