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Finding the Fourth Proportional to 669,890.64, 924,500.52 and 383,500.56

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Solution

The fourth proportional to 669,890.64, 924,500.52 and 383,500.56 is: 529,260.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,890.64 : 924,500.52 = 383,500.56 : x
  2. Step 2: Convert to fraction form
    669,890.64/924,500.52 = 383,500.56/x
  3. Step 3: Cross multiply
    669,890.64x = 924,500.52 × 383,500.56
  4. Step 4: Simplify right side
    669,890.64x = 354,546,467,140.29
  5. Step 5: Solve for x
    x = 354,546,467,140.29/669,890.64
  6. Step 6: Final answer
    x = 529,260.22

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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.