Home / 1,345,301.16-1,855,465.81-861,911.56

Finding the Fourth Proportional to 1,345,301.16, 1,855,465.81 and 861,911.56

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Solution

The fourth proportional to 1,345,301.16, 1,855,465.81 and 861,911.56 is: 1,188,765.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,301.16 : 1,855,465.81 = 861,911.56 : x
  2. Step 2: Convert to fraction form
    1,345,301.16/1,855,465.81 = 861,911.56/x
  3. Step 3: Cross multiply
    1,345,301.16x = 1,855,465.81 × 861,911.56
  4. Step 4: Simplify right side
    1,345,301.16x = 1,599,247,430,823.76
  5. Step 5: Solve for x
    x = 1,599,247,430,823.76/1,345,301.16
  6. Step 6: Final answer
    x = 1,188,765.37

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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.