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Finding the Fourth Proportional to 570,289.36, 786,873.36 and 340,812.22

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Solution

The fourth proportional to 570,289.36, 786,873.36 and 340,812.22 is: 470,245.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,289.36 : 786,873.36 = 340,812.22 : x
  2. Step 2: Convert to fraction form
    570,289.36/786,873.36 = 340,812.22/x
  3. Step 3: Cross multiply
    570,289.36x = 786,873.36 × 340,812.22
  4. Step 4: Simplify right side
    570,289.36x = 268,176,056,680.46
  5. Step 5: Solve for x
    x = 268,176,056,680.46/570,289.36
  6. Step 6: Final answer
    x = 470,245.59

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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.