Home / 1,386,516.70-2,079,775.05-787,246.30

Finding the Fourth Proportional to 1,386,516.70, 2,079,775.05 and 787,246.30

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Solution

The fourth proportional to 1,386,516.70, 2,079,775.05 and 787,246.30 is: 1,180,869.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,516.70 : 2,079,775.05 = 787,246.30 : x
  2. Step 2: Convert to fraction form
    1,386,516.70/2,079,775.05 = 787,246.30/x
  3. Step 3: Cross multiply
    1,386,516.70x = 2,079,775.05 × 787,246.30
  4. Step 4: Simplify right side
    1,386,516.70x = 1,637,295,212,944.82
  5. Step 5: Solve for x
    x = 1,637,295,212,944.82/1,386,516.70
  6. Step 6: Final answer
    x = 1,180,869.45

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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.