Home / 818,579.42-1,129,674.43-456,002.84

Finding the Fourth Proportional to 818,579.42, 1,129,674.43 and 456,002.84

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Solution

The fourth proportional to 818,579.42, 1,129,674.43 and 456,002.84 is: 629,303.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,579.42 : 1,129,674.43 = 456,002.84 : x
  2. Step 2: Convert to fraction form
    818,579.42/1,129,674.43 = 456,002.84/x
  3. Step 3: Cross multiply
    818,579.42x = 1,129,674.43 × 456,002.84
  4. Step 4: Simplify right side
    818,579.42x = 515,134,748,355.38
  5. Step 5: Solve for x
    x = 515,134,748,355.38/818,579.42
  6. Step 6: Final answer
    x = 629,303.32

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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.