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Finding the Fourth Proportional to 487,357.60, 729,999.60 and 404,413.60

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Solution

The fourth proportional to 487,357.60, 729,999.60 and 404,413.60 is: 605,760.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,357.60 : 729,999.60 = 404,413.60 : x
  2. Step 2: Convert to fraction form
    487,357.60/729,999.60 = 404,413.60/x
  3. Step 3: Cross multiply
    487,357.60x = 729,999.60 × 404,413.60
  4. Step 4: Simplify right side
    487,357.60x = 295,221,766,234.56
  5. Step 5: Solve for x
    x = 295,221,766,234.56/487,357.60
  6. Step 6: Final answer
    x = 605,760.05

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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.