Home / 1,201,804.80-1,658,490.60-665,260.80

Finding the Fourth Proportional to 1,201,804.80, 1,658,490.60 and 665,260.80

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Solution

The fourth proportional to 1,201,804.80, 1,658,490.60 and 665,260.80 is: 918,059.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,804.80 : 1,658,490.60 = 665,260.80 : x
  2. Step 2: Convert to fraction form
    1,201,804.80/1,658,490.60 = 665,260.80/x
  3. Step 3: Cross multiply
    1,201,804.80x = 1,658,490.60 × 665,260.80
  4. Step 4: Simplify right side
    1,201,804.80x = 1,103,328,783,348.48
  5. Step 5: Solve for x
    x = 1,103,328,783,348.48/1,201,804.80
  6. Step 6: Final answer
    x = 918,059.89

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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.