Home / 821,780.94-1,134,035.93-459,207.77

Finding the Fourth Proportional to 821,780.94, 1,134,035.93 and 459,207.77

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Solution

The fourth proportional to 821,780.94, 1,134,035.93 and 459,207.77 is: 633,694.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,780.94 : 1,134,035.93 = 459,207.77 : x
  2. Step 2: Convert to fraction form
    821,780.94/1,134,035.93 = 459,207.77/x
  3. Step 3: Cross multiply
    821,780.94x = 1,134,035.93 × 459,207.77
  4. Step 4: Simplify right side
    821,780.94x = 520,758,110,515.18
  5. Step 5: Solve for x
    x = 520,758,110,515.18/821,780.94
  6. Step 6: Final answer
    x = 633,694.56

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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.