Home / 721,633.42-1,082,877.74-402,052.78

Finding the Fourth Proportional to 721,633.42, 1,082,877.74 and 402,052.78

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Solution

The fourth proportional to 721,633.42, 1,082,877.74 and 402,052.78 is: 603,317.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,633.42 : 1,082,877.74 = 402,052.78 : x
  2. Step 2: Convert to fraction form
    721,633.42/1,082,877.74 = 402,052.78/x
  3. Step 3: Cross multiply
    721,633.42x = 1,082,877.74 × 402,052.78
  4. Step 4: Simplify right side
    721,633.42x = 435,374,005,767.12
  5. Step 5: Solve for x
    x = 435,374,005,767.12/721,633.42
  6. Step 6: Final answer
    x = 603,317.41

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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.