Home / 1,078,477.80-1,617,716.70-910,516.20

Finding the Fourth Proportional to 1,078,477.80, 1,617,716.70 and 910,516.20

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Solution

The fourth proportional to 1,078,477.80, 1,617,716.70 and 910,516.20 is: 1,365,774.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,477.80 : 1,617,716.70 = 910,516.20 : x
  2. Step 2: Convert to fraction form
    1,078,477.80/1,617,716.70 = 910,516.20/x
  3. Step 3: Cross multiply
    1,078,477.80x = 1,617,716.70 × 910,516.20
  4. Step 4: Simplify right side
    1,078,477.80x = 1,472,957,262,360.54
  5. Step 5: Solve for x
    x = 1,472,957,262,360.54/1,078,477.80
  6. Step 6: Final answer
    x = 1,365,774.30

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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.