Home / 1,184,801.22-1,635,020.78-640,935.72

Finding the Fourth Proportional to 1,184,801.22, 1,635,020.78 and 640,935.72

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Solution

The fourth proportional to 1,184,801.22, 1,635,020.78 and 640,935.72 is: 884,488.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,184,801.22 : 1,635,020.78 = 640,935.72 : x
  2. Step 2: Convert to fraction form
    1,184,801.22/1,635,020.78 = 640,935.72/x
  3. Step 3: Cross multiply
    1,184,801.22x = 1,635,020.78 × 640,935.72
  4. Step 4: Simplify right side
    1,184,801.22x = 1,047,943,217,639.58
  5. Step 5: Solve for x
    x = 1,047,943,217,639.58/1,184,801.22
  6. Step 6: Final answer
    x = 884,488.64

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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.