Home / 1,189,322.96-1,641,266.80-645,458.84

Finding the Fourth Proportional to 1,189,322.96, 1,641,266.80 and 645,458.84

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Solution

The fourth proportional to 1,189,322.96, 1,641,266.80 and 645,458.84 is: 890,733.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,322.96 : 1,641,266.80 = 645,458.84 : x
  2. Step 2: Convert to fraction form
    1,189,322.96/1,641,266.80 = 645,458.84/x
  3. Step 3: Cross multiply
    1,189,322.96x = 1,641,266.80 × 645,458.84
  4. Step 4: Simplify right side
    1,189,322.96x = 1,059,370,164,858.51
  5. Step 5: Solve for x
    x = 1,059,370,164,858.51/1,189,322.96
  6. Step 6: Final answer
    x = 890,733.80

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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.