Home / 818,393.44-1,227,590.16-313,005.76

Finding the Fourth Proportional to 818,393.44, 1,227,590.16 and 313,005.76

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Solution

The fourth proportional to 818,393.44, 1,227,590.16 and 313,005.76 is: 469,508.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,393.44 : 1,227,590.16 = 313,005.76 : x
  2. Step 2: Convert to fraction form
    818,393.44/1,227,590.16 = 313,005.76/x
  3. Step 3: Cross multiply
    818,393.44x = 1,227,590.16 × 313,005.76
  4. Step 4: Simplify right side
    818,393.44x = 384,242,790,999.32
  5. Step 5: Solve for x
    x = 384,242,790,999.32/818,393.44
  6. Step 6: Final answer
    x = 469,508.64

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1.5x scale

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.