Home / 1,375,823.99-1,898,812.22-831,963.72

Finding the Fourth Proportional to 1,375,823.99, 1,898,812.22 and 831,963.72

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Solution

The fourth proportional to 1,375,823.99, 1,898,812.22 and 831,963.72 is: 1,148,215.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,823.99 : 1,898,812.22 = 831,963.72 : x
  2. Step 2: Convert to fraction form
    1,375,823.99/1,898,812.22 = 831,963.72/x
  3. Step 3: Cross multiply
    1,375,823.99x = 1,898,812.22 × 831,963.72
  4. Step 4: Simplify right side
    1,375,823.99x = 1,579,742,881,093.39
  5. Step 5: Solve for x
    x = 1,579,742,881,093.39/1,375,823.99
  6. Step 6: Final answer
    x = 1,148,215.83

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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.