Home / 947,313.60-1,420,970.40-726,129.60

Finding the Fourth Proportional to 947,313.60, 1,420,970.40 and 726,129.60

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Solution

The fourth proportional to 947,313.60, 1,420,970.40 and 726,129.60 is: 1,089,194.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,313.60 : 1,420,970.40 = 726,129.60 : x
  2. Step 2: Convert to fraction form
    947,313.60/1,420,970.40 = 726,129.60/x
  3. Step 3: Cross multiply
    947,313.60x = 1,420,970.40 × 726,129.60
  4. Step 4: Simplify right side
    947,313.60x = 1,031,808,668,163.84
  5. Step 5: Solve for x
    x = 1,031,808,668,163.84/947,313.60
  6. Step 6: Final answer
    x = 1,089,194.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.