Home / 1,388,409.58-1,915,439.97-904,798.54

Finding the Fourth Proportional to 1,388,409.58, 1,915,439.97 and 904,798.54

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Solution

The fourth proportional to 1,388,409.58, 1,915,439.97 and 904,798.54 is: 1,248,253.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,409.58 : 1,915,439.97 = 904,798.54 : x
  2. Step 2: Convert to fraction form
    1,388,409.58/1,915,439.97 = 904,798.54/x
  3. Step 3: Cross multiply
    1,388,409.58x = 1,915,439.97 × 904,798.54
  4. Step 4: Simplify right side
    1,388,409.58x = 1,733,087,288,313.64
  5. Step 5: Solve for x
    x = 1,733,087,288,313.64/1,388,409.58
  6. Step 6: Final answer
    x = 1,248,253.62

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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.