Home / 1,687,197.60-2,531,386.89-489,191.81

Finding the Fourth Proportional to 1,687,197.60, 2,531,386.89 and 489,191.81

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Solution

The fourth proportional to 1,687,197.60, 2,531,386.89 and 489,191.81 is: 733,958.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687,197.60 : 2,531,386.89 = 489,191.81 : x
  2. Step 2: Convert to fraction form
    1,687,197.60/2,531,386.89 = 489,191.81/x
  3. Step 3: Cross multiply
    1,687,197.60x = 2,531,386.89 × 489,191.81
  4. Step 4: Simplify right side
    1,687,197.60x = 1,238,333,721,872.44
  5. Step 5: Solve for x
    x = 1,238,333,721,872.44/1,687,197.60
  6. Step 6: Final answer
    x = 733,958.92

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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.