Home / 688,614.40-1,033,067.40-208,802.80

Finding the Fourth Proportional to 688,614.40, 1,033,067.40 and 208,802.80

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Solution

The fourth proportional to 688,614.40, 1,033,067.40 and 208,802.80 is: 313,248.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,614.40 : 1,033,067.40 = 208,802.80 : x
  2. Step 2: Convert to fraction form
    688,614.40/1,033,067.40 = 208,802.80/x
  3. Step 3: Cross multiply
    688,614.40x = 1,033,067.40 × 208,802.80
  4. Step 4: Simplify right side
    688,614.40x = 215,707,365,708.72
  5. Step 5: Solve for x
    x = 215,707,365,708.72/688,614.40
  6. Step 6: Final answer
    x = 313,248.41

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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.