Home / 818,967.15-1,130,175.74-456,383.05

Finding the Fourth Proportional to 818,967.15, 1,130,175.74 and 456,383.05

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Solution

The fourth proportional to 818,967.15, 1,130,175.74 and 456,383.05 is: 629,809.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,967.15 : 1,130,175.74 = 456,383.05 : x
  2. Step 2: Convert to fraction form
    818,967.15/1,130,175.74 = 456,383.05/x
  3. Step 3: Cross multiply
    818,967.15x = 1,130,175.74 × 456,383.05
  4. Step 4: Simplify right side
    818,967.15x = 515,793,045,035.85
  5. Step 5: Solve for x
    x = 515,793,045,035.85/818,967.15
  6. Step 6: Final answer
    x = 629,809.20

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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.