Home / 809,833.95-1,117,579.73-465,840.72

Finding the Fourth Proportional to 809,833.95, 1,117,579.73 and 465,840.72

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Solution

The fourth proportional to 809,833.95, 1,117,579.73 and 465,840.72 is: 642,865.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,833.95 : 1,117,579.73 = 465,840.72 : x
  2. Step 2: Convert to fraction form
    809,833.95/1,117,579.73 = 465,840.72/x
  3. Step 3: Cross multiply
    809,833.95x = 1,117,579.73 × 465,840.72
  4. Step 4: Simplify right side
    809,833.95x = 520,614,143,751.40
  5. Step 5: Solve for x
    x = 520,614,143,751.40/809,833.95
  6. Step 6: Final answer
    x = 642,865.30

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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.