Home / 819,311.72-1,130,717.48-451,860.72

Finding the Fourth Proportional to 819,311.72, 1,130,717.48 and 451,860.72

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Solution

The fourth proportional to 819,311.72, 1,130,717.48 and 451,860.72 is: 623,604.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,311.72 : 1,130,717.48 = 451,860.72 : x
  2. Step 2: Convert to fraction form
    819,311.72/1,130,717.48 = 451,860.72/x
  3. Step 3: Cross multiply
    819,311.72x = 1,130,717.48 × 451,860.72
  4. Step 4: Simplify right side
    819,311.72x = 510,926,808,129.89
  5. Step 5: Solve for x
    x = 510,926,808,129.89/819,311.72
  6. Step 6: Final answer
    x = 623,604.91

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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.