Home / 1,158,361.05-1,598,548.86-642,120.51

Finding the Fourth Proportional to 1,158,361.05, 1,598,548.86 and 642,120.51

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Solution

The fourth proportional to 1,158,361.05, 1,598,548.86 and 642,120.51 is: 886,132.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158,361.05 : 1,598,548.86 = 642,120.51 : x
  2. Step 2: Convert to fraction form
    1,158,361.05/1,598,548.86 = 642,120.51/x
  3. Step 3: Cross multiply
    1,158,361.05x = 1,598,548.86 × 642,120.51
  4. Step 4: Simplify right side
    1,158,361.05x = 1,026,461,009,243.12
  5. Step 5: Solve for x
    x = 1,026,461,009,243.12/1,158,361.05
  6. Step 6: Final answer
    x = 886,132.19

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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.