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Finding the Fourth Proportional to 977,608.70, 1,466,413.05 and 809,647.10

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Solution

The fourth proportional to 977,608.70, 1,466,413.05 and 809,647.10 is: 1,214,470.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,608.70 : 1,466,413.05 = 809,647.10 : x
  2. Step 2: Convert to fraction form
    977,608.70/1,466,413.05 = 809,647.10/x
  3. Step 3: Cross multiply
    977,608.70x = 1,466,413.05 × 809,647.10
  4. Step 4: Simplify right side
    977,608.70x = 1,187,277,073,334.66
  5. Step 5: Solve for x
    x = 1,187,277,073,334.66/977,608.70
  6. Step 6: Final answer
    x = 1,214,470.65

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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.