Home / 1,276,869.92-1,915,742.40-436,012.16

Finding the Fourth Proportional to 1,276,869.92, 1,915,742.40 and 436,012.16

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Solution

The fourth proportional to 1,276,869.92, 1,915,742.40 and 436,012.16 is: 654,167.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,869.92 : 1,915,742.40 = 436,012.16 : x
  2. Step 2: Convert to fraction form
    1,276,869.92/1,915,742.40 = 436,012.16/x
  3. Step 3: Cross multiply
    1,276,869.92x = 1,915,742.40 × 436,012.16
  4. Step 4: Simplify right side
    1,276,869.92x = 835,286,981,827.58
  5. Step 5: Solve for x
    x = 835,286,981,827.58/1,276,869.92
  6. Step 6: Final answer
    x = 654,167.64

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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.