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Finding the Fourth Proportional to 535,730.20, 804,048.90 and 220,413.40

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Solution

The fourth proportional to 535,730.20, 804,048.90 and 220,413.40 is: 330,806.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,730.20 : 804,048.90 = 220,413.40 : x
  2. Step 2: Convert to fraction form
    535,730.20/804,048.90 = 220,413.40/x
  3. Step 3: Cross multiply
    535,730.20x = 804,048.90 × 220,413.40
  4. Step 4: Simplify right side
    535,730.20x = 177,223,151,815.26
  5. Step 5: Solve for x
    x = 177,223,151,815.26/535,730.20
  6. Step 6: Final answer
    x = 330,806.72

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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.