Home / 1,152,149.01-1,589,964.64-642,851.39

Finding the Fourth Proportional to 1,152,149.01, 1,589,964.64 and 642,851.39

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Solution

The fourth proportional to 1,152,149.01, 1,589,964.64 and 642,851.39 is: 887,134.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,149.01 : 1,589,964.64 = 642,851.39 : x
  2. Step 2: Convert to fraction form
    1,152,149.01/1,589,964.64 = 642,851.39/x
  3. Step 3: Cross multiply
    1,152,149.01x = 1,589,964.64 × 642,851.39
  4. Step 4: Simplify right side
    1,152,149.01x = 1,022,110,975,915.12
  5. Step 5: Solve for x
    x = 1,022,110,975,915.12/1,152,149.01
  6. Step 6: Final answer
    x = 887,134.36

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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.