Home / 780,946.08-1,170,580.77-331,287.54

Finding the Fourth Proportional to 780,946.08, 1,170,580.77 and 331,287.54

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Solution

The fourth proportional to 780,946.08, 1,170,580.77 and 331,287.54 is: 496,575.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,946.08 : 1,170,580.77 = 331,287.54 : x
  2. Step 2: Convert to fraction form
    780,946.08/1,170,580.77 = 331,287.54/x
  3. Step 3: Cross multiply
    780,946.08x = 1,170,580.77 × 331,287.54
  4. Step 4: Simplify right side
    780,946.08x = 387,798,823,664.61
  5. Step 5: Solve for x
    x = 387,798,823,664.61/780,946.08
  6. Step 6: Final answer
    x = 496,575.67

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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.