Home / 1,189,484.25-1,641,484.22-645,620.01

Finding the Fourth Proportional to 1,189,484.25, 1,641,484.22 and 645,620.01

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Solution

The fourth proportional to 1,189,484.25, 1,641,484.22 and 645,620.01 is: 890,953.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,484.25 : 1,641,484.22 = 645,620.01 : x
  2. Step 2: Convert to fraction form
    1,189,484.25/1,641,484.22 = 645,620.01/x
  3. Step 3: Cross multiply
    1,189,484.25x = 1,641,484.22 × 645,620.01
  4. Step 4: Simplify right side
    1,189,484.25x = 1,059,775,055,303.14
  5. Step 5: Solve for x
    x = 1,059,775,055,303.14/1,189,484.25
  6. Step 6: Final answer
    x = 890,953.42

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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.