Home / 885,023.62-1,220,890.38-558,740.98

Finding the Fourth Proportional to 885,023.62, 1,220,890.38 and 558,740.98

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Solution

The fourth proportional to 885,023.62, 1,220,890.38 and 558,740.98 is: 770,783.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,023.62 : 1,220,890.38 = 558,740.98 : x
  2. Step 2: Convert to fraction form
    885,023.62/1,220,890.38 = 558,740.98/x
  3. Step 3: Cross multiply
    885,023.62x = 1,220,890.38 × 558,740.98
  4. Step 4: Simplify right side
    885,023.62x = 682,161,487,393.77
  5. Step 5: Solve for x
    x = 682,161,487,393.77/885,023.62
  6. Step 6: Final answer
    x = 770,783.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.