Home / 726,323.70-1,089,485.55-656,339.70

Finding the Fourth Proportional to 726,323.70, 1,089,485.55 and 656,339.70

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Solution

The fourth proportional to 726,323.70, 1,089,485.55 and 656,339.70 is: 984,509.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,323.70 : 1,089,485.55 = 656,339.70 : x
  2. Step 2: Convert to fraction form
    726,323.70/1,089,485.55 = 656,339.70/x
  3. Step 3: Cross multiply
    726,323.70x = 1,089,485.55 × 656,339.70
  4. Step 4: Simplify right side
    726,323.70x = 715,072,619,041.34
  5. Step 5: Solve for x
    x = 715,072,619,041.34/726,323.70
  6. Step 6: Final answer
    x = 984,509.55

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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.