Home / 780,845.04-1,171,491.72-325,347.60

Finding the Fourth Proportional to 780,845.04, 1,171,491.72 and 325,347.60

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Solution

The fourth proportional to 780,845.04, 1,171,491.72 and 325,347.60 is: 488,114.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,845.04 : 1,171,491.72 = 325,347.60 : x
  2. Step 2: Convert to fraction form
    780,845.04/1,171,491.72 = 325,347.60/x
  3. Step 3: Cross multiply
    780,845.04x = 1,171,491.72 × 325,347.60
  4. Step 4: Simplify right side
    780,845.04x = 381,142,019,521.87
  5. Step 5: Solve for x
    x = 381,142,019,521.87/780,845.04
  6. Step 6: Final answer
    x = 488,114.80

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1.5x scale

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.