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Finding the Fourth Proportional to 570,425.40, 787,188.18 and 366,477.54

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Solution

The fourth proportional to 570,425.40, 787,188.18 and 366,477.54 is: 505,739.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,425.40 : 787,188.18 = 366,477.54 : x
  2. Step 2: Convert to fraction form
    570,425.40/787,188.18 = 366,477.54/x
  3. Step 3: Cross multiply
    570,425.40x = 787,188.18 × 366,477.54
  4. Step 4: Simplify right side
    570,425.40x = 288,486,787,723.48
  5. Step 5: Solve for x
    x = 288,486,787,723.48/570,425.40
  6. Step 6: Final answer
    x = 505,739.73

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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.