Home / 916,423.80-1,373,469.30-816,113.40

Finding the Fourth Proportional to 916,423.80, 1,373,469.30 and 816,113.40

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Solution

The fourth proportional to 916,423.80, 1,373,469.30 and 816,113.40 is: 1,223,131.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,423.80 : 1,373,469.30 = 816,113.40 : x
  2. Step 2: Convert to fraction form
    916,423.80/1,373,469.30 = 816,113.40/x
  3. Step 3: Cross multiply
    916,423.80x = 1,373,469.30 × 816,113.40
  4. Step 4: Simplify right side
    916,423.80x = 1,120,906,700,218.62
  5. Step 5: Solve for x
    x = 1,120,906,700,218.62/916,423.80
  6. Step 6: Final answer
    x = 1,223,131.37

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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.