Home / 1,316,138.96-1,816,137-764,768.72

Finding the Fourth Proportional to 1,316,138.96, 1,816,137 and 764,768.72

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Solution

The fourth proportional to 1,316,138.96, 1,816,137 and 764,768.72 is: 1,055,302.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,138.96 : 1,816,137 = 764,768.72 : x
  2. Step 2: Convert to fraction form
    1,316,138.96/1,816,137 = 764,768.72/x
  3. Step 3: Cross multiply
    1,316,138.96x = 1,816,137 × 764,768.72
  4. Step 4: Simplify right side
    1,316,138.96x = 1,388,924,768,834.64
  5. Step 5: Solve for x
    x = 1,388,924,768,834.64/1,316,138.96
  6. Step 6: Final answer
    x = 1,055,302.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.