Home / 818,860.06-1,130,015.46-456,299.20

Finding the Fourth Proportional to 818,860.06, 1,130,015.46 and 456,299.20

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Solution

The fourth proportional to 818,860.06, 1,130,015.46 and 456,299.20 is: 629,686.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,860.06 : 1,130,015.46 = 456,299.20 : x
  2. Step 2: Convert to fraction form
    818,860.06/1,130,015.46 = 456,299.20/x
  3. Step 3: Cross multiply
    818,860.06x = 1,130,015.46 × 456,299.20
  4. Step 4: Simplify right side
    818,860.06x = 515,625,150,385.63
  5. Step 5: Solve for x
    x = 515,625,150,385.63/818,860.06
  6. Step 6: Final answer
    x = 629,686.53

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1.5x scale

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.