Home / 589,413.05-813,459.14-331,290.35

Finding the Fourth Proportional to 589,413.05, 813,459.14 and 331,290.35

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Solution

The fourth proportional to 589,413.05, 813,459.14 and 331,290.35 is: 457,219.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,413.05 : 813,459.14 = 331,290.35 : x
  2. Step 2: Convert to fraction form
    589,413.05/813,459.14 = 331,290.35/x
  3. Step 3: Cross multiply
    589,413.05x = 813,459.14 × 331,290.35
  4. Step 4: Simplify right side
    589,413.05x = 269,491,159,962.23
  5. Step 5: Solve for x
    x = 269,491,159,962.23/589,413.05
  6. Step 6: Final answer
    x = 457,219.54

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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.