Home / 780,052.60-1,170,078.90-306,580.60

Finding the Fourth Proportional to 780,052.60, 1,170,078.90 and 306,580.60

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Solution

The fourth proportional to 780,052.60, 1,170,078.90 and 306,580.60 is: 459,870.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,052.60 : 1,170,078.90 = 306,580.60 : x
  2. Step 2: Convert to fraction form
    780,052.60/1,170,078.90 = 306,580.60/x
  3. Step 3: Cross multiply
    780,052.60x = 1,170,078.90 × 306,580.60
  4. Step 4: Simplify right side
    780,052.60x = 358,723,491,209.34
  5. Step 5: Solve for x
    x = 358,723,491,209.34/780,052.60
  6. Step 6: Final answer
    x = 459,870.90

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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.