Home / 1,374,501.12-1,896,906.24-770,928

Finding the Fourth Proportional to 1,374,501.12, 1,896,906.24 and 770,928

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Solution

The fourth proportional to 1,374,501.12, 1,896,906.24 and 770,928 is: 1,063,933.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,374,501.12 : 1,896,906.24 = 770,928 : x
  2. Step 2: Convert to fraction form
    1,374,501.12/1,896,906.24 = 770,928/x
  3. Step 3: Cross multiply
    1,374,501.12x = 1,896,906.24 × 770,928
  4. Step 4: Simplify right side
    1,374,501.12x = 1,462,378,133,790.72
  5. Step 5: Solve for x
    x = 1,462,378,133,790.72/1,374,501.12
  6. Step 6: Final answer
    x = 1,063,933.75

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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.