Home / 1,127,291.96-1,555,604.16-643,762.64

Finding the Fourth Proportional to 1,127,291.96, 1,555,604.16 and 643,762.64

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Solution

The fourth proportional to 1,127,291.96, 1,555,604.16 and 643,762.64 is: 888,358.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,291.96 : 1,555,604.16 = 643,762.64 : x
  2. Step 2: Convert to fraction form
    1,127,291.96/1,555,604.16 = 643,762.64/x
  3. Step 3: Cross multiply
    1,127,291.96x = 1,555,604.16 × 643,762.64
  4. Step 4: Simplify right side
    1,127,291.96x = 1,001,439,840,836.58
  5. Step 5: Solve for x
    x = 1,001,439,840,836.58/1,127,291.96
  6. Step 6: Final answer
    x = 888,358.90

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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.