Home / 686,450.80-1,029,676.20-371,522.80

Finding the Fourth Proportional to 686,450.80, 1,029,676.20 and 371,522.80

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Solution

The fourth proportional to 686,450.80, 1,029,676.20 and 371,522.80 is: 557,284.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,450.80 : 1,029,676.20 = 371,522.80 : x
  2. Step 2: Convert to fraction form
    686,450.80/1,029,676.20 = 371,522.80/x
  3. Step 3: Cross multiply
    686,450.80x = 1,029,676.20 × 371,522.80
  4. Step 4: Simplify right side
    686,450.80x = 382,548,184,917.36
  5. Step 5: Solve for x
    x = 382,548,184,917.36/686,450.80
  6. Step 6: Final answer
    x = 557,284.20

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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.