Home / 1,290,212.10-1,933,568.55-862,532.10

Finding the Fourth Proportional to 1,290,212.10, 1,933,568.55 and 862,532.10

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Solution

The fourth proportional to 1,290,212.10, 1,933,568.55 and 862,532.10 is: 1,292,628.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,212.10 : 1,933,568.55 = 862,532.10 : x
  2. Step 2: Convert to fraction form
    1,290,212.10/1,933,568.55 = 862,532.10/x
  3. Step 3: Cross multiply
    1,290,212.10x = 1,933,568.55 × 862,532.10
  4. Step 4: Simplify right side
    1,290,212.10x = 1,667,764,941,925.46
  5. Step 5: Solve for x
    x = 1,667,764,941,925.46/1,290,212.10
  6. Step 6: Final answer
    x = 1,292,628.51

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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.