Home / 1,008,640.60-1,391,879.10-555,904.60

Finding the Fourth Proportional to 1,008,640.60, 1,391,879.10 and 555,904.60

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Solution

The fourth proportional to 1,008,640.60, 1,391,879.10 and 555,904.60 is: 767,123.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,640.60 : 1,391,879.10 = 555,904.60 : x
  2. Step 2: Convert to fraction form
    1,008,640.60/1,391,879.10 = 555,904.60/x
  3. Step 3: Cross multiply
    1,008,640.60x = 1,391,879.10 × 555,904.60
  4. Step 4: Simplify right side
    1,008,640.60x = 773,751,994,333.86
  5. Step 5: Solve for x
    x = 773,751,994,333.86/1,008,640.60
  6. Step 6: Final answer
    x = 767,123.59

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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.