Home / 1,209,399.08-1,669,039.68-693,238.92

Finding the Fourth Proportional to 1,209,399.08, 1,669,039.68 and 693,238.92

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Solution

The fourth proportional to 1,209,399.08, 1,669,039.68 and 693,238.92 is: 956,709.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,399.08 : 1,669,039.68 = 693,238.92 : x
  2. Step 2: Convert to fraction form
    1,209,399.08/1,669,039.68 = 693,238.92/x
  3. Step 3: Cross multiply
    1,209,399.08x = 1,669,039.68 × 693,238.92
  4. Step 4: Simplify right side
    1,209,399.08x = 1,157,043,265,200.35
  5. Step 5: Solve for x
    x = 1,157,043,265,200.35/1,209,399.08
  6. Step 6: Final answer
    x = 956,709.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.