Home / 816,004.80-1,123,567.20-678,369.60

Finding the Fourth Proportional to 816,004.80, 1,123,567.20 and 678,369.60

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Solution

The fourth proportional to 816,004.80, 1,123,567.20 and 678,369.60 is: 934,055.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,004.80 : 1,123,567.20 = 678,369.60 : x
  2. Step 2: Convert to fraction form
    816,004.80/1,123,567.20 = 678,369.60/x
  3. Step 3: Cross multiply
    816,004.80x = 1,123,567.20 × 678,369.60
  4. Step 4: Simplify right side
    816,004.80x = 762,193,832,037.12
  5. Step 5: Solve for x
    x = 762,193,832,037.12/816,004.80
  6. Step 6: Final answer
    x = 934,055.57

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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.