Home / 691,380.40-1,036,897.80-264,823.60

Finding the Fourth Proportional to 691,380.40, 1,036,897.80 and 264,823.60

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Solution

The fourth proportional to 691,380.40, 1,036,897.80 and 264,823.60 is: 397,169.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,380.40 : 1,036,897.80 = 264,823.60 : x
  2. Step 2: Convert to fraction form
    691,380.40/1,036,897.80 = 264,823.60/x
  3. Step 3: Cross multiply
    691,380.40x = 1,036,897.80 × 264,823.60
  4. Step 4: Simplify right side
    691,380.40x = 274,595,008,228.08
  5. Step 5: Solve for x
    x = 274,595,008,228.08/691,380.40
  6. Step 6: Final answer
    x = 397,169.21

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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.