Home / 818,701.02-1,129,797.72-456,123.96

Finding the Fourth Proportional to 818,701.02, 1,129,797.72 and 456,123.96

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Solution

The fourth proportional to 818,701.02, 1,129,797.72 and 456,123.96 is: 629,445.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,701.02 : 1,129,797.72 = 456,123.96 : x
  2. Step 2: Convert to fraction form
    818,701.02/1,129,797.72 = 456,123.96/x
  3. Step 3: Cross multiply
    818,701.02x = 1,129,797.72 × 456,123.96
  4. Step 4: Simplify right side
    818,701.02x = 515,327,810,045.37
  5. Step 5: Solve for x
    x = 515,327,810,045.37/818,701.02
  6. Step 6: Final answer
    x = 629,445.67

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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.