Home / 780,039.60-1,170,059.40-683,617.20

Finding the Fourth Proportional to 780,039.60, 1,170,059.40 and 683,617.20

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Solution

The fourth proportional to 780,039.60, 1,170,059.40 and 683,617.20 is: 1,025,425.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,039.60 : 1,170,059.40 = 683,617.20 : x
  2. Step 2: Convert to fraction form
    780,039.60/1,170,059.40 = 683,617.20/x
  3. Step 3: Cross multiply
    780,039.60x = 1,170,059.40 × 683,617.20
  4. Step 4: Simplify right side
    780,039.60x = 799,872,730,861.68
  5. Step 5: Solve for x
    x = 799,872,730,861.68/780,039.60
  6. Step 6: Final answer
    x = 1,025,425.80

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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.