Home / 405,823.65-559,931.55-242,413.29

Finding the Fourth Proportional to 405,823.65, 559,931.55 and 242,413.29

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Solution

The fourth proportional to 405,823.65, 559,931.55 and 242,413.29 is: 334,467.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,823.65 : 559,931.55 = 242,413.29 : x
  2. Step 2: Convert to fraction form
    405,823.65/559,931.55 = 242,413.29/x
  3. Step 3: Cross multiply
    405,823.65x = 559,931.55 × 242,413.29
  4. Step 4: Simplify right side
    405,823.65x = 135,734,848,995.05
  5. Step 5: Solve for x
    x = 135,734,848,995.05/405,823.65
  6. Step 6: Final answer
    x = 334,467.57

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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.