Home / 1,987,623.40-2,981,435.10-657,927.40

Finding the Fourth Proportional to 1,987,623.40, 2,981,435.10 and 657,927.40

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Solution

The fourth proportional to 1,987,623.40, 2,981,435.10 and 657,927.40 is: 986,891.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,623.40 : 2,981,435.10 = 657,927.40 : x
  2. Step 2: Convert to fraction form
    1,987,623.40/2,981,435.10 = 657,927.40/x
  3. Step 3: Cross multiply
    1,987,623.40x = 2,981,435.10 × 657,927.40
  4. Step 4: Simplify right side
    1,987,623.40x = 1,961,567,843,611.74
  5. Step 5: Solve for x
    x = 1,961,567,843,611.74/1,987,623.40
  6. Step 6: Final answer
    x = 986,891.10

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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.