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Finding the Fourth Proportional to 570,596.56, 787,413.63 and 315,942.28

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Solution

The fourth proportional to 570,596.56, 787,413.63 and 315,942.28 is: 435,995.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,596.56 : 787,413.63 = 315,942.28 : x
  2. Step 2: Convert to fraction form
    570,596.56/787,413.63 = 315,942.28/x
  3. Step 3: Cross multiply
    570,596.56x = 787,413.63 × 315,942.28
  4. Step 4: Simplify right side
    570,596.56x = 248,777,257,565.28
  5. Step 5: Solve for x
    x = 248,777,257,565.28/570,596.56
  6. Step 6: Final answer
    x = 435,995.02

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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.