Home / 1,242,160.80-1,715,483.16-855,980.36

Finding the Fourth Proportional to 1,242,160.80, 1,715,483.16 and 855,980.36

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Solution

The fourth proportional to 1,242,160.80, 1,715,483.16 and 855,980.36 is: 1,182,149.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,160.80 : 1,715,483.16 = 855,980.36 : x
  2. Step 2: Convert to fraction form
    1,242,160.80/1,715,483.16 = 855,980.36/x
  3. Step 3: Cross multiply
    1,242,160.80x = 1,715,483.16 × 855,980.36
  4. Step 4: Simplify right side
    1,242,160.80x = 1,468,419,892,870.74
  5. Step 5: Solve for x
    x = 1,468,419,892,870.74/1,242,160.80
  6. Step 6: Final answer
    x = 1,182,149.60

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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.