Home / 948,804.40-1,423,204.84-309,107.38

Finding the Fourth Proportional to 948,804.40, 1,423,204.84 and 309,107.38

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Solution

The fourth proportional to 948,804.40, 1,423,204.84 and 309,107.38 is: 463,660.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,804.40 : 1,423,204.84 = 309,107.38 : x
  2. Step 2: Convert to fraction form
    948,804.40/1,423,204.84 = 309,107.38/x
  3. Step 3: Cross multiply
    948,804.40x = 1,423,204.84 × 309,107.38
  4. Step 4: Simplify right side
    948,804.40x = 439,923,119,295.72
  5. Step 5: Solve for x
    x = 439,923,119,295.72/948,804.40
  6. Step 6: Final answer
    x = 463,660.50

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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.