Home / 810,364.55-1,215,757.02-430,973.32

Finding the Fourth Proportional to 810,364.55, 1,215,757.02 and 430,973.32

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Solution

The fourth proportional to 810,364.55, 1,215,757.02 and 430,973.32 is: 646,571.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,364.55 : 1,215,757.02 = 430,973.32 : x
  2. Step 2: Convert to fraction form
    810,364.55/1,215,757.02 = 430,973.32/x
  3. Step 3: Cross multiply
    810,364.55x = 1,215,757.02 × 430,973.32
  4. Step 4: Simplify right side
    810,364.55x = 523,958,833,722.68
  5. Step 5: Solve for x
    x = 523,958,833,722.68/810,364.55
  6. Step 6: Final answer
    x = 646,571.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.