Home / 1,121,193.30-1,680,790.04-411,055.86

Finding the Fourth Proportional to 1,121,193.30, 1,680,790.04 and 411,055.86

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Solution

The fourth proportional to 1,121,193.30, 1,680,790.04 and 411,055.86 is: 616,217.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,193.30 : 1,680,790.04 = 411,055.86 : x
  2. Step 2: Convert to fraction form
    1,121,193.30/1,680,790.04 = 411,055.86/x
  3. Step 3: Cross multiply
    1,121,193.30x = 1,680,790.04 × 411,055.86
  4. Step 4: Simplify right side
    1,121,193.30x = 690,898,595,371.63
  5. Step 5: Solve for x
    x = 690,898,595,371.63/1,121,193.30
  6. Step 6: Final answer
    x = 616,217.20

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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.