Home / 1,011,119.56-1,395,976.08-643,804

Finding the Fourth Proportional to 1,011,119.56, 1,395,976.08 and 643,804

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Solution

The fourth proportional to 1,011,119.56, 1,395,976.08 and 643,804 is: 888,851.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,119.56 : 1,395,976.08 = 643,804 : x
  2. Step 2: Convert to fraction form
    1,011,119.56/1,395,976.08 = 643,804/x
  3. Step 3: Cross multiply
    1,011,119.56x = 1,395,976.08 × 643,804
  4. Step 4: Simplify right side
    1,011,119.56x = 898,734,984,208.32
  5. Step 5: Solve for x
    x = 898,734,984,208.32/1,011,119.56
  6. Step 6: Final answer
    x = 888,851.35

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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.