Home / 918,015.20-1,378,059.60-708,581.60

Finding the Fourth Proportional to 918,015.20, 1,378,059.60 and 708,581.60

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Solution

The fourth proportional to 918,015.20, 1,378,059.60 and 708,581.60 is: 1,063,672.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,015.20 : 1,378,059.60 = 708,581.60 : x
  2. Step 2: Convert to fraction form
    918,015.20/1,378,059.60 = 708,581.60/x
  3. Step 3: Cross multiply
    918,015.20x = 1,378,059.60 × 708,581.60
  4. Step 4: Simplify right side
    918,015.20x = 976,467,676,263.36
  5. Step 5: Solve for x
    x = 976,467,676,263.36/918,015.20
  6. Step 6: Final answer
    x = 1,063,672.67

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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.