Home / 928,178.98-1,392,269.64-254,266.21

Finding the Fourth Proportional to 928,178.98, 1,392,269.64 and 254,266.21

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Solution

The fourth proportional to 928,178.98, 1,392,269.64 and 254,266.21 is: 381,399.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,178.98 : 1,392,269.64 = 254,266.21 : x
  2. Step 2: Convert to fraction form
    928,178.98/1,392,269.64 = 254,266.21/x
  3. Step 3: Cross multiply
    928,178.98x = 1,392,269.64 × 254,266.21
  4. Step 4: Simplify right side
    928,178.98x = 354,007,124,660.86
  5. Step 5: Solve for x
    x = 354,007,124,660.86/928,178.98
  6. Step 6: Final answer
    x = 381,399.64

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Double scale
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Similar ratio
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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.