Home / 1,289,009.37-1,778,635.47-745,040.37

Finding the Fourth Proportional to 1,289,009.37, 1,778,635.47 and 745,040.37

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Solution

The fourth proportional to 1,289,009.37, 1,778,635.47 and 745,040.37 is: 1,028,041.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,009.37 : 1,778,635.47 = 745,040.37 : x
  2. Step 2: Convert to fraction form
    1,289,009.37/1,778,635.47 = 745,040.37/x
  3. Step 3: Cross multiply
    1,289,009.37x = 1,778,635.47 × 745,040.37
  4. Step 4: Simplify right side
    1,289,009.37x = 1,325,155,228,663.92
  5. Step 5: Solve for x
    x = 1,325,155,228,663.92/1,289,009.37
  6. Step 6: Final answer
    x = 1,028,041.58

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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.