Home / 868,899.87-1,303,347.15-220,474.80

Finding the Fourth Proportional to 868,899.87, 1,303,347.15 and 220,474.80

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Solution

The fourth proportional to 868,899.87, 1,303,347.15 and 220,474.80 is: 330,711.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,899.87 : 1,303,347.15 = 220,474.80 : x
  2. Step 2: Convert to fraction form
    868,899.87/1,303,347.15 = 220,474.80/x
  3. Step 3: Cross multiply
    868,899.87x = 1,303,347.15 × 220,474.80
  4. Step 4: Simplify right side
    868,899.87x = 287,355,202,226.82
  5. Step 5: Solve for x
    x = 287,355,202,226.82/868,899.87
  6. Step 6: Final answer
    x = 330,711.53

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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.