Home / 818,829.28-1,129,950.48-456,234.40

Finding the Fourth Proportional to 818,829.28, 1,129,950.48 and 456,234.40

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Solution

The fourth proportional to 818,829.28, 1,129,950.48 and 456,234.40 is: 629,584.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,829.28 : 1,129,950.48 = 456,234.40 : x
  2. Step 2: Convert to fraction form
    818,829.28/1,129,950.48 = 456,234.40/x
  3. Step 3: Cross multiply
    818,829.28x = 1,129,950.48 × 456,234.40
  4. Step 4: Simplify right side
    818,829.28x = 515,522,279,272.51
  5. Step 5: Solve for x
    x = 515,522,279,272.51/818,829.28
  6. Step 6: Final answer
    x = 629,584.57

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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.