Home / 780,066.40-1,170,099.60-360,162.40

Finding the Fourth Proportional to 780,066.40, 1,170,099.60 and 360,162.40

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Solution

The fourth proportional to 780,066.40, 1,170,099.60 and 360,162.40 is: 540,243.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,066.40 : 1,170,099.60 = 360,162.40 : x
  2. Step 2: Convert to fraction form
    780,066.40/1,170,099.60 = 360,162.40/x
  3. Step 3: Cross multiply
    780,066.40x = 1,170,099.60 × 360,162.40
  4. Step 4: Simplify right side
    780,066.40x = 421,425,880,175.04
  5. Step 5: Solve for x
    x = 421,425,880,175.04/780,066.40
  6. Step 6: Final answer
    x = 540,243.60

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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.