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Finding the Fourth Proportional to 504,435.43, 696,116.32 and 278,080.93

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Solution

The fourth proportional to 504,435.43, 696,116.32 and 278,080.93 is: 383,749.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,435.43 : 696,116.32 = 278,080.93 : x
  2. Step 2: Convert to fraction form
    504,435.43/696,116.32 = 278,080.93/x
  3. Step 3: Cross multiply
    504,435.43x = 696,116.32 × 278,080.93
  4. Step 4: Simplify right side
    504,435.43x = 193,576,673,653.78
  5. Step 5: Solve for x
    x = 193,576,673,653.78/504,435.43
  6. Step 6: Final answer
    x = 383,749.16

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.