Home / 451,424.20-677,309.10-444,339.40

Finding the Fourth Proportional to 451,424.20, 677,309.10 and 444,339.40

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Solution

The fourth proportional to 451,424.20, 677,309.10 and 444,339.40 is: 666,679.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,424.20 : 677,309.10 = 444,339.40 : x
  2. Step 2: Convert to fraction form
    451,424.20/677,309.10 = 444,339.40/x
  3. Step 3: Cross multiply
    451,424.20x = 677,309.10 × 444,339.40
  4. Step 4: Simplify right side
    451,424.20x = 300,955,119,108.54
  5. Step 5: Solve for x
    x = 300,955,119,108.54/451,424.20
  6. Step 6: Final answer
    x = 666,679.19

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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.