Home / 1,581,756.78-2,182,813.49-856,587.91

Finding the Fourth Proportional to 1,581,756.78, 2,182,813.49 and 856,587.91

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Solution

The fourth proportional to 1,581,756.78, 2,182,813.49 and 856,587.91 is: 1,182,085.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581,756.78 : 2,182,813.49 = 856,587.91 : x
  2. Step 2: Convert to fraction form
    1,581,756.78/2,182,813.49 = 856,587.91/x
  3. Step 3: Cross multiply
    1,581,756.78x = 2,182,813.49 × 856,587.91
  4. Step 4: Simplify right side
    1,581,756.78x = 1,869,771,640,889.42
  5. Step 5: Solve for x
    x = 1,869,771,640,889.42/1,581,756.78
  6. Step 6: Final answer
    x = 1,182,085.43

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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.