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Finding the Fourth Proportional to 480,413.70, 662,942.43 and 265,540.95

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Solution

The fourth proportional to 480,413.70, 662,942.43 and 265,540.95 is: 366,430.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,413.70 : 662,942.43 = 265,540.95 : x
  2. Step 2: Convert to fraction form
    480,413.70/662,942.43 = 265,540.95/x
  3. Step 3: Cross multiply
    480,413.70x = 662,942.43 × 265,540.95
  4. Step 4: Simplify right side
    480,413.70x = 176,038,362,657.51
  5. Step 5: Solve for x
    x = 176,038,362,657.51/480,413.70
  6. Step 6: Final answer
    x = 366,430.77

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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.