Home / 1,332,629.36-1,998,944.04-386,000.40

Finding the Fourth Proportional to 1,332,629.36, 1,998,944.04 and 386,000.40

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Solution

The fourth proportional to 1,332,629.36, 1,998,944.04 and 386,000.40 is: 579,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,629.36 : 1,998,944.04 = 386,000.40 : x
  2. Step 2: Convert to fraction form
    1,332,629.36/1,998,944.04 = 386,000.40/x
  3. Step 3: Cross multiply
    1,332,629.36x = 1,998,944.04 × 386,000.40
  4. Step 4: Simplify right side
    1,332,629.36x = 771,593,199,017.62
  5. Step 5: Solve for x
    x = 771,593,199,017.62/1,332,629.36
  6. Step 6: Final answer
    x = 579,000.60

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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.