Home / 1,085,742.88-1,628,757.68-402,535.40

Finding the Fourth Proportional to 1,085,742.88, 1,628,757.68 and 402,535.40

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Solution

The fourth proportional to 1,085,742.88, 1,628,757.68 and 402,535.40 is: 603,856.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,742.88 : 1,628,757.68 = 402,535.40 : x
  2. Step 2: Convert to fraction form
    1,085,742.88/1,628,757.68 = 402,535.40/x
  3. Step 3: Cross multiply
    1,085,742.88x = 1,628,757.68 × 402,535.40
  4. Step 4: Simplify right side
    1,085,742.88x = 655,632,624,221.87
  5. Step 5: Solve for x
    x = 655,632,624,221.87/1,085,742.88
  6. Step 6: Final answer
    x = 603,856.25

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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.