Home / 1,520,473.21-2,280,785.69-455,413.80

Finding the Fourth Proportional to 1,520,473.21, 2,280,785.69 and 455,413.80

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Solution

The fourth proportional to 1,520,473.21, 2,280,785.69 and 455,413.80 is: 683,143.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,473.21 : 2,280,785.69 = 455,413.80 : x
  2. Step 2: Convert to fraction form
    1,520,473.21/2,280,785.69 = 455,413.80/x
  3. Step 3: Cross multiply
    1,520,473.21x = 2,280,785.69 × 455,413.80
  4. Step 4: Simplify right side
    1,520,473.21x = 1,038,701,278,068.52
  5. Step 5: Solve for x
    x = 1,038,701,278,068.52/1,520,473.21
  6. Step 6: Final answer
    x = 683,143.43

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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.