Home / 1,485,281.78-2,049,539.26-840,589.74

Finding the Fourth Proportional to 1,485,281.78, 2,049,539.26 and 840,589.74

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Solution

The fourth proportional to 1,485,281.78, 2,049,539.26 and 840,589.74 is: 1,159,929.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485,281.78 : 2,049,539.26 = 840,589.74 : x
  2. Step 2: Convert to fraction form
    1,485,281.78/2,049,539.26 = 840,589.74/x
  3. Step 3: Cross multiply
    1,485,281.78x = 2,049,539.26 × 840,589.74
  4. Step 4: Simplify right side
    1,485,281.78x = 1,722,821,673,683.19
  5. Step 5: Solve for x
    x = 1,722,821,673,683.19/1,485,281.78
  6. Step 6: Final answer
    x = 1,159,929.18

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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.