Home / 856,987.47-1,286,385.15-837,685.56

Finding the Fourth Proportional to 856,987.47, 1,286,385.15 and 837,685.56

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Solution

The fourth proportional to 856,987.47, 1,286,385.15 and 837,685.56 is: 1,257,411.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,987.47 : 1,286,385.15 = 837,685.56 : x
  2. Step 2: Convert to fraction form
    856,987.47/1,286,385.15 = 837,685.56/x
  3. Step 3: Cross multiply
    856,987.47x = 1,286,385.15 × 837,685.56
  4. Step 4: Simplify right side
    856,987.47x = 1,077,586,264,753.43
  5. Step 5: Solve for x
    x = 1,077,586,264,753.43/856,987.47
  6. Step 6: Final answer
    x = 1,257,411.93

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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.