Home / 1,268,409.10-1,902,613.65-520,069.90

Finding the Fourth Proportional to 1,268,409.10, 1,902,613.65 and 520,069.90

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Solution

The fourth proportional to 1,268,409.10, 1,902,613.65 and 520,069.90 is: 780,104.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,409.10 : 1,902,613.65 = 520,069.90 : x
  2. Step 2: Convert to fraction form
    1,268,409.10/1,902,613.65 = 520,069.90/x
  3. Step 3: Cross multiply
    1,268,409.10x = 1,902,613.65 × 520,069.90
  4. Step 4: Simplify right side
    1,268,409.10x = 989,492,090,694.14
  5. Step 5: Solve for x
    x = 989,492,090,694.14/1,268,409.10
  6. Step 6: Final answer
    x = 780,104.85

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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.