Home / 1,149,387.42-1,586,041.11-640,137.18

Finding the Fourth Proportional to 1,149,387.42, 1,586,041.11 and 640,137.18

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Solution

The fourth proportional to 1,149,387.42, 1,586,041.11 and 640,137.18 is: 883,326.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,387.42 : 1,586,041.11 = 640,137.18 : x
  2. Step 2: Convert to fraction form
    1,149,387.42/1,586,041.11 = 640,137.18/x
  3. Step 3: Cross multiply
    1,149,387.42x = 1,586,041.11 × 640,137.18
  4. Step 4: Simplify right side
    1,149,387.42x = 1,015,283,883,519.47
  5. Step 5: Solve for x
    x = 1,015,283,883,519.47/1,149,387.42
  6. Step 6: Final answer
    x = 883,326.08

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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.