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Finding the Fourth Proportional to 669,839.66, 924,383.16 and 363,915.96

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Solution

The fourth proportional to 669,839.66, 924,383.16 and 363,915.96 is: 502,206.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,839.66 : 924,383.16 = 363,915.96 : x
  2. Step 2: Convert to fraction form
    669,839.66/924,383.16 = 363,915.96/x
  3. Step 3: Cross multiply
    669,839.66x = 924,383.16 × 363,915.96
  4. Step 4: Simplify right side
    669,839.66x = 336,397,783,259.65
  5. Step 5: Solve for x
    x = 336,397,783,259.65/669,839.66
  6. Step 6: Final answer
    x = 502,206.43

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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.