Home / 1,187,115.60-1,776,007.80-1,075,141.20

Finding the Fourth Proportional to 1,187,115.60, 1,776,007.80 and 1,075,141.20

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Solution

The fourth proportional to 1,187,115.60, 1,776,007.80 and 1,075,141.20 is: 1,608,486.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,115.60 : 1,776,007.80 = 1,075,141.20 : x
  2. Step 2: Convert to fraction form
    1,187,115.60/1,776,007.80 = 1,075,141.20/x
  3. Step 3: Cross multiply
    1,187,115.60x = 1,776,007.80 × 1,075,141.20
  4. Step 4: Simplify right side
    1,187,115.60x = 1,909,459,157,301.36
  5. Step 5: Solve for x
    x = 1,909,459,157,301.36/1,187,115.60
  6. Step 6: Final answer
    x = 1,608,486.28

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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.