Home / 1,285,567.80-1,928,379.03-432,665.34

Finding the Fourth Proportional to 1,285,567.80, 1,928,379.03 and 432,665.34

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Solution

The fourth proportional to 1,285,567.80, 1,928,379.03 and 432,665.34 is: 649,007.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,567.80 : 1,928,379.03 = 432,665.34 : x
  2. Step 2: Convert to fraction form
    1,285,567.80/1,928,379.03 = 432,665.34/x
  3. Step 3: Cross multiply
    1,285,567.80x = 1,928,379.03 × 432,665.34
  4. Step 4: Simplify right side
    1,285,567.80x = 834,342,768,663.82
  5. Step 5: Solve for x
    x = 834,342,768,663.82/1,285,567.80
  6. Step 6: Final answer
    x = 649,007.21

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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.