Home / 1,439,768.32-2,159,914.92-720,486.16

Finding the Fourth Proportional to 1,439,768.32, 2,159,914.92 and 720,486.16

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Solution

The fourth proportional to 1,439,768.32, 2,159,914.92 and 720,486.16 is: 1,080,860.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,768.32 : 2,159,914.92 = 720,486.16 : x
  2. Step 2: Convert to fraction form
    1,439,768.32/2,159,914.92 = 720,486.16/x
  3. Step 3: Cross multiply
    1,439,768.32x = 2,159,914.92 × 720,486.16
  4. Step 4: Simplify right side
    1,439,768.32x = 1,556,188,806,637.51
  5. Step 5: Solve for x
    x = 1,556,188,806,637.51/1,439,768.32
  6. Step 6: Final answer
    x = 1,080,860.57

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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.