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Finding the Fourth Proportional to 504,476, 696,181.60 and 278,129.60

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Solution

The fourth proportional to 504,476, 696,181.60 and 278,129.60 is: 383,821.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,476 : 696,181.60 = 278,129.60 : x
  2. Step 2: Convert to fraction form
    504,476/696,181.60 = 278,129.60/x
  3. Step 3: Cross multiply
    504,476x = 696,181.60 × 278,129.60
  4. Step 4: Simplify right side
    504,476x = 193,628,709,935.36
  5. Step 5: Solve for x
    x = 193,628,709,935.36/504,476
  6. Step 6: Final answer
    x = 383,821.45

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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.