Home / 384,821.12-574,413.66-339,370.72

Finding the Fourth Proportional to 384,821.12, 574,413.66 and 339,370.72

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Solution

The fourth proportional to 384,821.12, 574,413.66 and 339,370.72 is: 506,570.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,821.12 : 574,413.66 = 339,370.72 : x
  2. Step 2: Convert to fraction form
    384,821.12/574,413.66 = 339,370.72/x
  3. Step 3: Cross multiply
    384,821.12x = 574,413.66 × 339,370.72
  4. Step 4: Simplify right side
    384,821.12x = 194,939,177,372.04
  5. Step 5: Solve for x
    x = 194,939,177,372.04/384,821.12
  6. Step 6: Final answer
    x = 506,570.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.