Home / 857,682.50-1,284,899.87-572,513.18

Finding the Fourth Proportional to 857,682.50, 1,284,899.87 and 572,513.18

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Solution

The fourth proportional to 857,682.50, 1,284,899.87 and 572,513.18 is: 857,685.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,682.50 : 1,284,899.87 = 572,513.18 : x
  2. Step 2: Convert to fraction form
    857,682.50/1,284,899.87 = 572,513.18/x
  3. Step 3: Cross multiply
    857,682.50x = 1,284,899.87 × 572,513.18
  4. Step 4: Simplify right side
    857,682.50x = 735,622,105,562.07
  5. Step 5: Solve for x
    x = 735,622,105,562.07/857,682.50
  6. Step 6: Final answer
    x = 857,685.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.