Home / 813,926.60-1,221,064.85-274,236.50

Finding the Fourth Proportional to 813,926.60, 1,221,064.85 and 274,236.50

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Solution

The fourth proportional to 813,926.60, 1,221,064.85 and 274,236.50 is: 411,413.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,926.60 : 1,221,064.85 = 274,236.50 : x
  2. Step 2: Convert to fraction form
    813,926.60/1,221,064.85 = 274,236.50/x
  3. Step 3: Cross multiply
    813,926.60x = 1,221,064.85 × 274,236.50
  4. Step 4: Simplify right side
    813,926.60x = 334,860,549,365.84
  5. Step 5: Solve for x
    x = 334,860,549,365.84/813,926.60
  6. Step 6: Final answer
    x = 411,413.70

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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.