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Finding the Fourth Proportional to 867,081.84, 1,301,037.48 and 306,380.40

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Solution

The fourth proportional to 867,081.84, 1,301,037.48 and 306,380.40 is: 459,717.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,081.84 : 1,301,037.48 = 306,380.40 : x
  2. Step 2: Convert to fraction form
    867,081.84/1,301,037.48 = 306,380.40/x
  3. Step 3: Cross multiply
    867,081.84x = 1,301,037.48 × 306,380.40
  4. Step 4: Simplify right side
    867,081.84x = 398,612,383,537.39
  5. Step 5: Solve for x
    x = 398,612,383,537.39/867,081.84
  6. Step 6: Final answer
    x = 459,717.14

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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.