Home / 828,490.26-1,143,305.67-465,914.01

Finding the Fourth Proportional to 828,490.26, 1,143,305.67 and 465,914.01

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Solution

The fourth proportional to 828,490.26, 1,143,305.67 and 465,914.01 is: 642,955.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,490.26 : 1,143,305.67 = 465,914.01 : x
  2. Step 2: Convert to fraction form
    828,490.26/1,143,305.67 = 465,914.01/x
  3. Step 3: Cross multiply
    828,490.26x = 1,143,305.67 × 465,914.01
  4. Step 4: Simplify right side
    828,490.26x = 532,682,129,365.44
  5. Step 5: Solve for x
    x = 532,682,129,365.44/828,490.26
  6. Step 6: Final answer
    x = 642,955.21

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1.5x scale

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.