Home / 1,189,433.06-1,641,422.56-645,569.63

Finding the Fourth Proportional to 1,189,433.06, 1,641,422.56 and 645,569.63

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Solution

The fourth proportional to 1,189,433.06, 1,641,422.56 and 645,569.63 is: 890,888.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,433.06 : 1,641,422.56 = 645,569.63 : x
  2. Step 2: Convert to fraction form
    1,189,433.06/1,641,422.56 = 645,569.63/x
  3. Step 3: Cross multiply
    1,189,433.06x = 1,641,422.56 × 645,569.63
  4. Step 4: Simplify right side
    1,189,433.06x = 1,059,652,546,525.74
  5. Step 5: Solve for x
    x = 1,059,652,546,525.74/1,189,433.06
  6. Step 6: Final answer
    x = 890,888.77

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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.