Home / 880,821.75-1,215,535.23-478,413.75

Finding the Fourth Proportional to 880,821.75, 1,215,535.23 and 478,413.75

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Solution

The fourth proportional to 880,821.75, 1,215,535.23 and 478,413.75 is: 660,211.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,821.75 : 1,215,535.23 = 478,413.75 : x
  2. Step 2: Convert to fraction form
    880,821.75/1,215,535.23 = 478,413.75/x
  3. Step 3: Cross multiply
    880,821.75x = 1,215,535.23 × 478,413.75
  4. Step 4: Simplify right side
    880,821.75x = 581,528,767,641.41
  5. Step 5: Solve for x
    x = 581,528,767,641.41/880,821.75
  6. Step 6: Final answer
    x = 660,211.63

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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.