Home / 1,267,136.87-1,900,711.58-320,508.50

Finding the Fourth Proportional to 1,267,136.87, 1,900,711.58 and 320,508.50

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Solution

The fourth proportional to 1,267,136.87, 1,900,711.58 and 320,508.50 is: 480,764.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,136.87 : 1,900,711.58 = 320,508.50 : x
  2. Step 2: Convert to fraction form
    1,267,136.87/1,900,711.58 = 320,508.50/x
  3. Step 3: Cross multiply
    1,267,136.87x = 1,900,711.58 × 320,508.50
  4. Step 4: Simplify right side
    1,267,136.87x = 609,194,206,332.33
  5. Step 5: Solve for x
    x = 609,194,206,332.33/1,267,136.87
  6. Step 6: Final answer
    x = 480,764.33

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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.