Home / 818,857.22-1,130,011.47-456,296.36

Finding the Fourth Proportional to 818,857.22, 1,130,011.47 and 456,296.36

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Solution

The fourth proportional to 818,857.22, 1,130,011.47 and 456,296.36 is: 629,682.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,857.22 : 1,130,011.47 = 456,296.36 : x
  2. Step 2: Convert to fraction form
    818,857.22/1,130,011.47 = 456,296.36/x
  3. Step 3: Cross multiply
    818,857.22x = 1,130,011.47 × 456,296.36
  4. Step 4: Simplify right side
    818,857.22x = 515,620,114,869.19
  5. Step 5: Solve for x
    x = 515,620,114,869.19/818,857.22
  6. Step 6: Final answer
    x = 629,682.57

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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.