Home / 678,413.56-1,017,641.76-341,270.16

Finding the Fourth Proportional to 678,413.56, 1,017,641.76 and 341,270.16

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Solution

The fourth proportional to 678,413.56, 1,017,641.76 and 341,270.16 is: 511,916.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,413.56 : 1,017,641.76 = 341,270.16 : x
  2. Step 2: Convert to fraction form
    678,413.56/1,017,641.76 = 341,270.16/x
  3. Step 3: Cross multiply
    678,413.56x = 1,017,641.76 × 341,270.16
  4. Step 4: Simplify right side
    678,413.56x = 347,290,766,257.88
  5. Step 5: Solve for x
    x = 347,290,766,257.88/678,413.56
  6. Step 6: Final answer
    x = 511,916.02

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Double scale
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1.5x scale

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.