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Finding the Fourth Proportional to 1,934,603.10, 2,901,904.65 and 978,009.30

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Solution

The fourth proportional to 1,934,603.10, 2,901,904.65 and 978,009.30 is: 1,467,013.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,934,603.10 : 2,901,904.65 = 978,009.30 : x
  2. Step 2: Convert to fraction form
    1,934,603.10/2,901,904.65 = 978,009.30/x
  3. Step 3: Cross multiply
    1,934,603.10x = 2,901,904.65 × 978,009.30
  4. Step 4: Simplify right side
    1,934,603.10x = 2,838,089,735,413.25
  5. Step 5: Solve for x
    x = 2,838,089,735,413.25/1,934,603.10
  6. Step 6: Final answer
    x = 1,467,013.95

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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.