Home / 897,311.89-1,238,305.17-489,413.74

Finding the Fourth Proportional to 897,311.89, 1,238,305.17 and 489,413.74

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Solution

The fourth proportional to 897,311.89, 1,238,305.17 and 489,413.74 is: 675,399.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,311.89 : 1,238,305.17 = 489,413.74 : x
  2. Step 2: Convert to fraction form
    897,311.89/1,238,305.17 = 489,413.74/x
  3. Step 3: Cross multiply
    897,311.89x = 1,238,305.17 × 489,413.74
  4. Step 4: Simplify right side
    897,311.89x = 606,043,564,511.04
  5. Step 5: Solve for x
    x = 606,043,564,511.04/897,311.89
  6. Step 6: Final answer
    x = 675,399.01

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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.