Home / 871,975.20-1,203,314.94-490,066.68

Finding the Fourth Proportional to 871,975.20, 1,203,314.94 and 490,066.68

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Solution

The fourth proportional to 871,975.20, 1,203,314.94 and 490,066.68 is: 676,285.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,975.20 : 1,203,314.94 = 490,066.68 : x
  2. Step 2: Convert to fraction form
    871,975.20/1,203,314.94 = 490,066.68/x
  3. Step 3: Cross multiply
    871,975.20x = 1,203,314.94 × 490,066.68
  4. Step 4: Simplify right side
    871,975.20x = 589,704,557,640.20
  5. Step 5: Solve for x
    x = 589,704,557,640.20/871,975.20
  6. Step 6: Final answer
    x = 676,285.93

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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.