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Finding the Fourth Proportional to 570,539.44, 787,369.03 and 315,890.63

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Solution

The fourth proportional to 570,539.44, 787,369.03 and 315,890.63 is: 435,942.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,539.44 : 787,369.03 = 315,890.63 : x
  2. Step 2: Convert to fraction form
    570,539.44/787,369.03 = 315,890.63/x
  3. Step 3: Cross multiply
    570,539.44x = 787,369.03 × 315,890.63
  4. Step 4: Simplify right side
    570,539.44x = 248,722,494,202.62
  5. Step 5: Solve for x
    x = 248,722,494,202.62/570,539.44
  6. Step 6: Final answer
    x = 435,942.68

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1.5x scale

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.