Home / 1,314,212.25-1,971,668.31-415,670.34

Finding the Fourth Proportional to 1,314,212.25, 1,971,668.31 and 415,670.34

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Solution

The fourth proportional to 1,314,212.25, 1,971,668.31 and 415,670.34 is: 623,616.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,212.25 : 1,971,668.31 = 415,670.34 : x
  2. Step 2: Convert to fraction form
    1,314,212.25/1,971,668.31 = 415,670.34/x
  3. Step 3: Cross multiply
    1,314,212.25x = 1,971,668.31 × 415,670.34
  4. Step 4: Simplify right side
    1,314,212.25x = 819,564,036,784.93
  5. Step 5: Solve for x
    x = 819,564,036,784.93/1,314,212.25
  6. Step 6: Final answer
    x = 623,616.19

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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.