Home / 816,090.88-1,220,378.24-776,277.76

Finding the Fourth Proportional to 816,090.88, 1,220,378.24 and 776,277.76

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Solution

The fourth proportional to 816,090.88, 1,220,378.24 and 776,277.76 is: 1,160,841.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,090.88 : 1,220,378.24 = 776,277.76 : x
  2. Step 2: Convert to fraction form
    816,090.88/1,220,378.24 = 776,277.76/x
  3. Step 3: Cross multiply
    816,090.88x = 1,220,378.24 × 776,277.76
  4. Step 4: Simplify right side
    816,090.88x = 947,352,486,499.94
  5. Step 5: Solve for x
    x = 947,352,486,499.94/816,090.88
  6. Step 6: Final answer
    x = 1,160,841.90

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1.5x scale

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.