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Finding the Fourth Proportional to 669,911.64, 924,519.39 and 383,425.59

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Solution

The fourth proportional to 669,911.64, 924,519.39 and 383,425.59 is: 529,150.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,911.64 : 924,519.39 = 383,425.59 : x
  2. Step 2: Convert to fraction form
    669,911.64/924,519.39 = 383,425.59/x
  3. Step 3: Cross multiply
    669,911.64x = 924,519.39 × 383,425.59
  4. Step 4: Simplify right side
    669,911.64x = 354,484,392,577.19
  5. Step 5: Solve for x
    x = 354,484,392,577.19/669,911.64
  6. Step 6: Final answer
    x = 529,150.97

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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.