Home / 685,603.67-1,028,569.53-286,022.36

Finding the Fourth Proportional to 685,603.67, 1,028,569.53 and 286,022.36

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Solution

The fourth proportional to 685,603.67, 1,028,569.53 and 286,022.36 is: 429,101.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,603.67 : 1,028,569.53 = 286,022.36 : x
  2. Step 2: Convert to fraction form
    685,603.67/1,028,569.53 = 286,022.36/x
  3. Step 3: Cross multiply
    685,603.67x = 1,028,569.53 × 286,022.36
  4. Step 4: Simplify right side
    685,603.67x = 294,193,884,394.69
  5. Step 5: Solve for x
    x = 294,193,884,394.69/685,603.67
  6. Step 6: Final answer
    x = 429,101.97

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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.