Home / 821,723-1,134,030.48-459,147.92

Finding the Fourth Proportional to 821,723, 1,134,030.48 and 459,147.92

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Solution

The fourth proportional to 821,723, 1,134,030.48 and 459,147.92 is: 633,653.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,723 : 1,134,030.48 = 459,147.92 : x
  2. Step 2: Convert to fraction form
    821,723/1,134,030.48 = 459,147.92/x
  3. Step 3: Cross multiply
    821,723x = 1,134,030.48 × 459,147.92
  4. Step 4: Simplify right side
    821,723x = 520,687,736,108.60
  5. Step 5: Solve for x
    x = 520,687,736,108.60/821,723
  6. Step 6: Final answer
    x = 633,653.60

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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.