Home / 1,070,859.20-1,606,288.80-818,916.80

Finding the Fourth Proportional to 1,070,859.20, 1,606,288.80 and 818,916.80

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Solution

The fourth proportional to 1,070,859.20, 1,606,288.80 and 818,916.80 is: 1,228,375.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,859.20 : 1,606,288.80 = 818,916.80 : x
  2. Step 2: Convert to fraction form
    1,070,859.20/1,606,288.80 = 818,916.80/x
  3. Step 3: Cross multiply
    1,070,859.20x = 1,606,288.80 × 818,916.80
  4. Step 4: Simplify right side
    1,070,859.20x = 1,315,416,883,971.84
  5. Step 5: Solve for x
    x = 1,315,416,883,971.84/1,070,859.20
  6. Step 6: Final answer
    x = 1,228,375.20

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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.