Home / 1,371,689.43-1,893,855.60-856,228.11

Finding the Fourth Proportional to 1,371,689.43, 1,893,855.60 and 856,228.11

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Solution

The fourth proportional to 1,371,689.43, 1,893,855.60 and 856,228.11 is: 1,182,171.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371,689.43 : 1,893,855.60 = 856,228.11 : x
  2. Step 2: Convert to fraction form
    1,371,689.43/1,893,855.60 = 856,228.11/x
  3. Step 3: Cross multiply
    1,371,689.43x = 1,893,855.60 × 856,228.11
  4. Step 4: Simplify right side
    1,371,689.43x = 1,621,572,401,000.92
  5. Step 5: Solve for x
    x = 1,621,572,401,000.92/1,371,689.43
  6. Step 6: Final answer
    x = 1,182,171.68

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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.