Home / 945,339.20-1,418,138.40-314,187.20

Finding the Fourth Proportional to 945,339.20, 1,418,138.40 and 314,187.20

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Solution

The fourth proportional to 945,339.20, 1,418,138.40 and 314,187.20 is: 471,323.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,339.20 : 1,418,138.40 = 314,187.20 : x
  2. Step 2: Convert to fraction form
    945,339.20/1,418,138.40 = 314,187.20/x
  3. Step 3: Cross multiply
    945,339.20x = 1,418,138.40 × 314,187.20
  4. Step 4: Simplify right side
    945,339.20x = 445,560,933,108.48
  5. Step 5: Solve for x
    x = 445,560,933,108.48/945,339.20
  6. Step 6: Final answer
    x = 471,323.87

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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.