Home / 1,332,111.56-1,998,413.75-421,523.29

Finding the Fourth Proportional to 1,332,111.56, 1,998,413.75 and 421,523.29

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Solution

The fourth proportional to 1,332,111.56, 1,998,413.75 and 421,523.29 is: 632,362.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,111.56 : 1,998,413.75 = 421,523.29 : x
  2. Step 2: Convert to fraction form
    1,332,111.56/1,998,413.75 = 421,523.29/x
  3. Step 3: Cross multiply
    1,332,111.56x = 1,998,413.75 × 421,523.29
  4. Step 4: Simplify right side
    1,332,111.56x = 842,377,938,681.24
  5. Step 5: Solve for x
    x = 842,377,938,681.24/1,332,111.56
  6. Step 6: Final answer
    x = 632,362.91

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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.