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Finding the Fourth Proportional to 670,206, 924,884.28 and 383,820.84

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Solution

The fourth proportional to 670,206, 924,884.28 and 383,820.84 is: 529,672.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,206 : 924,884.28 = 383,820.84 : x
  2. Step 2: Convert to fraction form
    670,206/924,884.28 = 383,820.84/x
  3. Step 3: Cross multiply
    670,206x = 924,884.28 × 383,820.84
  4. Step 4: Simplify right side
    670,206x = 354,989,861,252.40
  5. Step 5: Solve for x
    x = 354,989,861,252.40/670,206
  6. Step 6: Final answer
    x = 529,672.76

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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.