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Finding the Fourth Proportional to 570,624.22, 787,485.17 and 315,975.41

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Solution

The fourth proportional to 570,624.22, 787,485.17 and 315,975.41 is: 436,059.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,624.22 : 787,485.17 = 315,975.41 : x
  2. Step 2: Convert to fraction form
    570,624.22/787,485.17 = 315,975.41/x
  3. Step 3: Cross multiply
    570,624.22x = 787,485.17 × 315,975.41
  4. Step 4: Simplify right side
    570,624.22x = 248,825,949,265.25
  5. Step 5: Solve for x
    x = 248,825,949,265.25/570,624.22
  6. Step 6: Final answer
    x = 436,059.21

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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.