Home / 2,124,829.96-3,187,866.72-685,485.70

Finding the Fourth Proportional to 2,124,829.96, 3,187,866.72 and 685,485.70

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Solution

The fourth proportional to 2,124,829.96, 3,187,866.72 and 685,485.70 is: 1,028,429.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124,829.96 : 3,187,866.72 = 685,485.70 : x
  2. Step 2: Convert to fraction form
    2,124,829.96/3,187,866.72 = 685,485.70/x
  3. Step 3: Cross multiply
    2,124,829.96x = 3,187,866.72 × 685,485.70
  4. Step 4: Simplify right side
    2,124,829.96x = 2,185,237,050,065.90
  5. Step 5: Solve for x
    x = 2,185,237,050,065.90/2,124,829.96
  6. Step 6: Final answer
    x = 1,028,429.14

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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.