Home / 1,148,413.92-1,584,795.64-639,116.30

Finding the Fourth Proportional to 1,148,413.92, 1,584,795.64 and 639,116.30

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Solution

The fourth proportional to 1,148,413.92, 1,584,795.64 and 639,116.30 is: 881,971.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148,413.92 : 1,584,795.64 = 639,116.30 : x
  2. Step 2: Convert to fraction form
    1,148,413.92/1,584,795.64 = 639,116.30/x
  3. Step 3: Cross multiply
    1,148,413.92x = 1,584,795.64 × 639,116.30
  4. Step 4: Simplify right side
    1,148,413.92x = 1,012,868,725,692.93
  5. Step 5: Solve for x
    x = 1,012,868,725,692.93/1,148,413.92
  6. Step 6: Final answer
    x = 881,971.83

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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.