Home / 753,779.58-1,040,255.63-427,155.85

Finding the Fourth Proportional to 753,779.58, 1,040,255.63 and 427,155.85

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Solution

The fourth proportional to 753,779.58, 1,040,255.63 and 427,155.85 is: 589,497.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,779.58 : 1,040,255.63 = 427,155.85 : x
  2. Step 2: Convert to fraction form
    753,779.58/1,040,255.63 = 427,155.85/x
  3. Step 3: Cross multiply
    753,779.58x = 1,040,255.63 × 427,155.85
  4. Step 4: Simplify right side
    753,779.58x = 444,351,275,714.16
  5. Step 5: Solve for x
    x = 444,351,275,714.16/753,779.58
  6. Step 6: Final answer
    x = 589,497.63

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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.