Home / 1,587,285.86-2,190,470.55-862,147.73

Finding the Fourth Proportional to 1,587,285.86, 2,190,470.55 and 862,147.73

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Solution

The fourth proportional to 1,587,285.86, 2,190,470.55 and 862,147.73 is: 1,189,772.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,285.86 : 2,190,470.55 = 862,147.73 : x
  2. Step 2: Convert to fraction form
    1,587,285.86/2,190,470.55 = 862,147.73/x
  3. Step 3: Cross multiply
    1,587,285.86x = 2,190,470.55 × 862,147.73
  4. Step 4: Simplify right side
    1,587,285.86x = 1,888,509,212,314.35
  5. Step 5: Solve for x
    x = 1,888,509,212,314.35/1,587,285.86
  6. Step 6: Final answer
    x = 1,189,772.59

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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.