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Finding the Fourth Proportional to 702,836.88, 969,984.36 and 401,076.24

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Solution

The fourth proportional to 702,836.88, 969,984.36 and 401,076.24 is: 553,524.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,836.88 : 969,984.36 = 401,076.24 : x
  2. Step 2: Convert to fraction form
    702,836.88/969,984.36 = 401,076.24/x
  3. Step 3: Cross multiply
    702,836.88x = 969,984.36 × 401,076.24
  4. Step 4: Simplify right side
    702,836.88x = 389,037,679,967.61
  5. Step 5: Solve for x
    x = 389,037,679,967.61/702,836.88
  6. Step 6: Final answer
    x = 553,524.85

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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.