Home / 891,016.40-1,336,830.60-260,022.80

Finding the Fourth Proportional to 891,016.40, 1,336,830.60 and 260,022.80

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Solution

The fourth proportional to 891,016.40, 1,336,830.60 and 260,022.80 is: 390,123.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,016.40 : 1,336,830.60 = 260,022.80 : x
  2. Step 2: Convert to fraction form
    891,016.40/1,336,830.60 = 260,022.80/x
  3. Step 3: Cross multiply
    891,016.40x = 1,336,830.60 × 260,022.80
  4. Step 4: Simplify right side
    891,016.40x = 347,606,435,737.68
  5. Step 5: Solve for x
    x = 347,606,435,737.68/891,016.40
  6. Step 6: Final answer
    x = 390,123.50

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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.