Home / 771,676.20-1,064,912.88-427,534.44

Finding the Fourth Proportional to 771,676.20, 1,064,912.88 and 427,534.44

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Solution

The fourth proportional to 771,676.20, 1,064,912.88 and 427,534.44 is: 589,997.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,676.20 : 1,064,912.88 = 427,534.44 : x
  2. Step 2: Convert to fraction form
    771,676.20/1,064,912.88 = 427,534.44/x
  3. Step 3: Cross multiply
    771,676.20x = 1,064,912.88 × 427,534.44
  4. Step 4: Simplify right side
    771,676.20x = 455,286,931,799.59
  5. Step 5: Solve for x
    x = 455,286,931,799.59/771,676.20
  6. Step 6: Final answer
    x = 589,997.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.