Home / 911,867.92-1,258,381.94-498,413.24

Finding the Fourth Proportional to 911,867.92, 1,258,381.94 and 498,413.24

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Solution

The fourth proportional to 911,867.92, 1,258,381.94 and 498,413.24 is: 687,812.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,867.92 : 1,258,381.94 = 498,413.24 : x
  2. Step 2: Convert to fraction form
    911,867.92/1,258,381.94 = 498,413.24/x
  3. Step 3: Cross multiply
    911,867.92x = 1,258,381.94 × 498,413.24
  4. Step 4: Simplify right side
    911,867.92x = 627,194,211,088.91
  5. Step 5: Solve for x
    x = 627,194,211,088.91/911,867.92
  6. Step 6: Final answer
    x = 687,812.56

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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.