Home / 879,231.80-1,318,458.90-405,673.40

Finding the Fourth Proportional to 879,231.80, 1,318,458.90 and 405,673.40

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Solution

The fourth proportional to 879,231.80, 1,318,458.90 and 405,673.40 is: 608,330.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,231.80 : 1,318,458.90 = 405,673.40 : x
  2. Step 2: Convert to fraction form
    879,231.80/1,318,458.90 = 405,673.40/x
  3. Step 3: Cross multiply
    879,231.80x = 1,318,458.90 × 405,673.40
  4. Step 4: Simplify right side
    879,231.80x = 534,863,704,723.26
  5. Step 5: Solve for x
    x = 534,863,704,723.26/879,231.80
  6. Step 6: Final answer
    x = 608,330.71

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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.