Home / 913,318.56-1,260,334.92-505,413.12

Finding the Fourth Proportional to 913,318.56, 1,260,334.92 and 505,413.12

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Solution

The fourth proportional to 913,318.56, 1,260,334.92 and 505,413.12 is: 697,445.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,318.56 : 1,260,334.92 = 505,413.12 : x
  2. Step 2: Convert to fraction form
    913,318.56/1,260,334.92 = 505,413.12/x
  3. Step 3: Cross multiply
    913,318.56x = 1,260,334.92 × 505,413.12
  4. Step 4: Simplify right side
    913,318.56x = 636,989,804,162.15
  5. Step 5: Solve for x
    x = 636,989,804,162.15/913,318.56
  6. Step 6: Final answer
    x = 697,445.37

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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.