Home / 897,311.65-1,238,304.83-489,413.49

Finding the Fourth Proportional to 897,311.65, 1,238,304.83 and 489,413.49

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Solution

The fourth proportional to 897,311.65, 1,238,304.83 and 489,413.49 is: 675,398.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,311.65 : 1,238,304.83 = 489,413.49 : x
  2. Step 2: Convert to fraction form
    897,311.65/1,238,304.83 = 489,413.49/x
  3. Step 3: Cross multiply
    897,311.65x = 1,238,304.83 × 489,413.49
  4. Step 4: Simplify right side
    897,311.65x = 606,043,079,895.57
  5. Step 5: Solve for x
    x = 606,043,079,895.57/897,311.65
  6. Step 6: Final answer
    x = 675,398.66

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1.5x scale

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.