Home / 742,676.23-1,024,932.86-420,458.23

Finding the Fourth Proportional to 742,676.23, 1,024,932.86 and 420,458.23

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Solution

The fourth proportional to 742,676.23, 1,024,932.86 and 420,458.23 is: 580,254.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,676.23 : 1,024,932.86 = 420,458.23 : x
  2. Step 2: Convert to fraction form
    742,676.23/1,024,932.86 = 420,458.23/x
  3. Step 3: Cross multiply
    742,676.23x = 1,024,932.86 × 420,458.23
  4. Step 4: Simplify right side
    742,676.23x = 430,941,456,184.44
  5. Step 5: Solve for x
    x = 430,941,456,184.44/742,676.23
  6. Step 6: Final answer
    x = 580,254.81

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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.