Home / 858,802.45-1,287,711.60-259,673.80

Finding the Fourth Proportional to 858,802.45, 1,287,711.60 and 259,673.80

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Solution

The fourth proportional to 858,802.45, 1,287,711.60 and 259,673.80 is: 389,361.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,802.45 : 1,287,711.60 = 259,673.80 : x
  2. Step 2: Convert to fraction form
    858,802.45/1,287,711.60 = 259,673.80/x
  3. Step 3: Cross multiply
    858,802.45x = 1,287,711.60 × 259,673.80
  4. Step 4: Simplify right side
    858,802.45x = 334,384,964,476.08
  5. Step 5: Solve for x
    x = 334,384,964,476.08/858,802.45
  6. Step 6: Final answer
    x = 389,361.91

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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.