Home / 670,413.60-1,004,308.20-403,380.90

Finding the Fourth Proportional to 670,413.60, 1,004,308.20 and 403,380.90

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Solution

The fourth proportional to 670,413.60, 1,004,308.20 and 403,380.90 is: 604,281.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,413.60 : 1,004,308.20 = 403,380.90 : x
  2. Step 2: Convert to fraction form
    670,413.60/1,004,308.20 = 403,380.90/x
  3. Step 3: Cross multiply
    670,413.60x = 1,004,308.20 × 403,380.90
  4. Step 4: Simplify right side
    670,413.60x = 405,118,745,593.38
  5. Step 5: Solve for x
    x = 405,118,745,593.38/670,413.60
  6. Step 6: Final answer
    x = 604,281.81

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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.