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Finding the Fourth Proportional to 553,765.02, 764,196.04 and 299,116.20

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Solution

The fourth proportional to 553,765.02, 764,196.04 and 299,116.20 is: 412,780.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,765.02 : 764,196.04 = 299,116.20 : x
  2. Step 2: Convert to fraction form
    553,765.02/764,196.04 = 299,116.20/x
  3. Step 3: Cross multiply
    553,765.02x = 764,196.04 × 299,116.20
  4. Step 4: Simplify right side
    553,765.02x = 228,583,415,539.85
  5. Step 5: Solve for x
    x = 228,583,415,539.85/553,765.02
  6. Step 6: Final answer
    x = 412,780.52

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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.