Home / 1,420,618.53-2,131,457.19-852,407.45

Finding the Fourth Proportional to 1,420,618.53, 2,131,457.19 and 852,407.45

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Solution

The fourth proportional to 1,420,618.53, 2,131,457.19 and 852,407.45 is: 1,278,928.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,618.53 : 2,131,457.19 = 852,407.45 : x
  2. Step 2: Convert to fraction form
    1,420,618.53/2,131,457.19 = 852,407.45/x
  3. Step 3: Cross multiply
    1,420,618.53x = 2,131,457.19 × 852,407.45
  4. Step 4: Simplify right side
    1,420,618.53x = 1,816,869,977,454.78
  5. Step 5: Solve for x
    x = 1,816,869,977,454.78/1,420,618.53
  6. Step 6: Final answer
    x = 1,278,928.82

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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.