Home / 1,478,273.20-2,217,409.80-681,111.70

Finding the Fourth Proportional to 1,478,273.20, 2,217,409.80 and 681,111.70

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Solution

The fourth proportional to 1,478,273.20, 2,217,409.80 and 681,111.70 is: 1,021,667.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,273.20 : 2,217,409.80 = 681,111.70 : x
  2. Step 2: Convert to fraction form
    1,478,273.20/2,217,409.80 = 681,111.70/x
  3. Step 3: Cross multiply
    1,478,273.20x = 2,217,409.80 × 681,111.70
  4. Step 4: Simplify right side
    1,478,273.20x = 1,510,303,758,474.66
  5. Step 5: Solve for x
    x = 1,510,303,758,474.66/1,478,273.20
  6. Step 6: Final answer
    x = 1,021,667.55

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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.