Home / 1,008,137.80-1,512,206.70-343,289.80

Finding the Fourth Proportional to 1,008,137.80, 1,512,206.70 and 343,289.80

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Solution

The fourth proportional to 1,008,137.80, 1,512,206.70 and 343,289.80 is: 514,934.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,137.80 : 1,512,206.70 = 343,289.80 : x
  2. Step 2: Convert to fraction form
    1,008,137.80/1,512,206.70 = 343,289.80/x
  3. Step 3: Cross multiply
    1,008,137.80x = 1,512,206.70 × 343,289.80
  4. Step 4: Simplify right side
    1,008,137.80x = 519,125,135,601.66
  5. Step 5: Solve for x
    x = 519,125,135,601.66/1,008,137.80
  6. Step 6: Final answer
    x = 514,934.70

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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.