Home / 679,413.42-1,018,536.93-379,648.62

Finding the Fourth Proportional to 679,413.42, 1,018,536.93 and 379,648.62

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Solution

The fourth proportional to 679,413.42, 1,018,536.93 and 379,648.62 is: 569,147.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,413.42 : 1,018,536.93 = 379,648.62 : x
  2. Step 2: Convert to fraction form
    679,413.42/1,018,536.93 = 379,648.62/x
  3. Step 3: Cross multiply
    679,413.42x = 1,018,536.93 × 379,648.62
  4. Step 4: Simplify right side
    679,413.42x = 386,686,139,893.54
  5. Step 5: Solve for x
    x = 386,686,139,893.54/679,413.42
  6. Step 6: Final answer
    x = 569,147.04

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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.