Home / 787,127.20-1,183,315.20-671,653.60

Finding the Fourth Proportional to 787,127.20, 1,183,315.20 and 671,653.60

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Solution

The fourth proportional to 787,127.20, 1,183,315.20 and 671,653.60 is: 1,009,719.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,127.20 : 1,183,315.20 = 671,653.60 : x
  2. Step 2: Convert to fraction form
    787,127.20/1,183,315.20 = 671,653.60/x
  3. Step 3: Cross multiply
    787,127.20x = 1,183,315.20 × 671,653.60
  4. Step 4: Simplify right side
    787,127.20x = 794,777,914,014.72
  5. Step 5: Solve for x
    x = 794,777,914,014.72/787,127.20
  6. Step 6: Final answer
    x = 1,009,719.79

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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.