Home / 685,476.58-1,028,392.26-401,407.15

Finding the Fourth Proportional to 685,476.58, 1,028,392.26 and 401,407.15

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Solution

The fourth proportional to 685,476.58, 1,028,392.26 and 401,407.15 is: 602,214.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,476.58 : 1,028,392.26 = 401,407.15 : x
  2. Step 2: Convert to fraction form
    685,476.58/1,028,392.26 = 401,407.15/x
  3. Step 3: Cross multiply
    685,476.58x = 1,028,392.26 × 401,407.15
  4. Step 4: Simplify right side
    685,476.58x = 412,804,006,168.66
  5. Step 5: Solve for x
    x = 412,804,006,168.66/685,476.58
  6. Step 6: Final answer
    x = 602,214.60

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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.