Home / 1,187,109.60-1,775,998.80-1,075,135.20

Finding the Fourth Proportional to 1,187,109.60, 1,775,998.80 and 1,075,135.20

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Solution

The fourth proportional to 1,187,109.60, 1,775,998.80 and 1,075,135.20 is: 1,608,477.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,109.60 : 1,775,998.80 = 1,075,135.20 : x
  2. Step 2: Convert to fraction form
    1,187,109.60/1,775,998.80 = 1,075,135.20/x
  3. Step 3: Cross multiply
    1,187,109.60x = 1,775,998.80 × 1,075,135.20
  4. Step 4: Simplify right side
    1,187,109.60x = 1,909,438,825,037.76
  5. Step 5: Solve for x
    x = 1,909,438,825,037.76/1,187,109.60
  6. Step 6: Final answer
    x = 1,608,477.28

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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.