Home / 3,120,506.10-4,680,413.55-876,870.90

Finding the Fourth Proportional to 3,120,506.10, 4,680,413.55 and 876,870.90

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Solution

The fourth proportional to 3,120,506.10, 4,680,413.55 and 876,870.90 is: 1,315,209.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,506.10 : 4,680,413.55 = 876,870.90 : x
  2. Step 2: Convert to fraction form
    3,120,506.10/4,680,413.55 = 876,870.90/x
  3. Step 3: Cross multiply
    3,120,506.10x = 4,680,413.55 × 876,870.90
  4. Step 4: Simplify right side
    3,120,506.10x = 4,104,118,441,960.70
  5. Step 5: Solve for x
    x = 4,104,118,441,960.70/3,120,506.10
  6. Step 6: Final answer
    x = 1,315,209.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.