Home / 1,370,289.78-2,055,434.67-423,639.54

Finding the Fourth Proportional to 1,370,289.78, 2,055,434.67 and 423,639.54

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Solution

The fourth proportional to 1,370,289.78, 2,055,434.67 and 423,639.54 is: 635,459.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,289.78 : 2,055,434.67 = 423,639.54 : x
  2. Step 2: Convert to fraction form
    1,370,289.78/2,055,434.67 = 423,639.54/x
  3. Step 3: Cross multiply
    1,370,289.78x = 2,055,434.67 × 423,639.54
  4. Step 4: Simplify right side
    1,370,289.78x = 870,763,398,098.85
  5. Step 5: Solve for x
    x = 870,763,398,098.85/1,370,289.78
  6. Step 6: Final answer
    x = 635,459.31

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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.