Home / 818,767.80-1,129,982.76-456,250.68

Finding the Fourth Proportional to 818,767.80, 1,129,982.76 and 456,250.68

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Solution

The fourth proportional to 818,767.80, 1,129,982.76 and 456,250.68 is: 629,672.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,767.80 : 1,129,982.76 = 456,250.68 : x
  2. Step 2: Convert to fraction form
    818,767.80/1,129,982.76 = 456,250.68/x
  3. Step 3: Cross multiply
    818,767.80x = 1,129,982.76 × 456,250.68
  4. Step 4: Simplify right side
    818,767.80x = 515,555,402,638.28
  5. Step 5: Solve for x
    x = 515,555,402,638.28/818,767.80
  6. Step 6: Final answer
    x = 629,672.30

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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.