Home / 727,874.30-1,091,811.45-412,946.30

Finding the Fourth Proportional to 727,874.30, 1,091,811.45 and 412,946.30

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Solution

The fourth proportional to 727,874.30, 1,091,811.45 and 412,946.30 is: 619,419.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,874.30 : 1,091,811.45 = 412,946.30 : x
  2. Step 2: Convert to fraction form
    727,874.30/1,091,811.45 = 412,946.30/x
  3. Step 3: Cross multiply
    727,874.30x = 1,091,811.45 × 412,946.30
  4. Step 4: Simplify right side
    727,874.30x = 450,859,498,575.14
  5. Step 5: Solve for x
    x = 450,859,498,575.14/727,874.30
  6. Step 6: Final answer
    x = 619,419.45

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1.5x scale

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.