Home / 771,610.28-1,064,810.61-427,445.12

Finding the Fourth Proportional to 771,610.28, 1,064,810.61 and 427,445.12

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Solution

The fourth proportional to 771,610.28, 1,064,810.61 and 427,445.12 is: 589,867.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,610.28 : 1,064,810.61 = 427,445.12 : x
  2. Step 2: Convert to fraction form
    771,610.28/1,064,810.61 = 427,445.12/x
  3. Step 3: Cross multiply
    771,610.28x = 1,064,810.61 × 427,445.12
  4. Step 4: Simplify right side
    771,610.28x = 455,148,093,644.67
  5. Step 5: Solve for x
    x = 455,148,093,644.67/771,610.28
  6. Step 6: Final answer
    x = 589,867.85

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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.