Home / 1,198,940.90-1,655,271.63-780,235.65

Finding the Fourth Proportional to 1,198,940.90, 1,655,271.63 and 780,235.65

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Solution

The fourth proportional to 1,198,940.90, 1,655,271.63 and 780,235.65 is: 1,077,202.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,940.90 : 1,655,271.63 = 780,235.65 : x
  2. Step 2: Convert to fraction form
    1,198,940.90/1,655,271.63 = 780,235.65/x
  3. Step 3: Cross multiply
    1,198,940.90x = 1,655,271.63 × 780,235.65
  4. Step 4: Simplify right side
    1,198,940.90x = 1,291,501,936,159.61
  5. Step 5: Solve for x
    x = 1,291,501,936,159.61/1,198,940.90
  6. Step 6: Final answer
    x = 1,077,202.34

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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.