Home / 831,678.42-1,147,668.62-469,080.64

Finding the Fourth Proportional to 831,678.42, 1,147,668.62 and 469,080.64

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Solution

The fourth proportional to 831,678.42, 1,147,668.62 and 469,080.64 is: 647,304.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,678.42 : 1,147,668.62 = 469,080.64 : x
  2. Step 2: Convert to fraction form
    831,678.42/1,147,668.62 = 469,080.64/x
  3. Step 3: Cross multiply
    831,678.42x = 1,147,668.62 × 469,080.64
  4. Step 4: Simplify right side
    831,678.42x = 538,349,130,777.52
  5. Step 5: Solve for x
    x = 538,349,130,777.52/831,678.42
  6. Step 6: Final answer
    x = 647,304.44

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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.