Home / 442,928.10-662,642.55-384,413.70

Finding the Fourth Proportional to 442,928.10, 662,642.55 and 384,413.70

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Solution

The fourth proportional to 442,928.10, 662,642.55 and 384,413.70 is: 575,102.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,928.10 : 662,642.55 = 384,413.70 : x
  2. Step 2: Convert to fraction form
    442,928.10/662,642.55 = 384,413.70/x
  3. Step 3: Cross multiply
    442,928.10x = 662,642.55 × 384,413.70
  4. Step 4: Simplify right side
    442,928.10x = 254,728,874,422.94
  5. Step 5: Solve for x
    x = 254,728,874,422.94/442,928.10
  6. Step 6: Final answer
    x = 575,102.09

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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.