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Finding the Fourth Proportional to 669,940.90, 924,522.12 and 364,019.69

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Solution

The fourth proportional to 669,940.90, 924,522.12 and 364,019.69 is: 502,349.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,940.90 : 924,522.12 = 364,019.69 : x
  2. Step 2: Convert to fraction form
    669,940.90/924,522.12 = 364,019.69/x
  3. Step 3: Cross multiply
    669,940.90x = 924,522.12 × 364,019.69
  4. Step 4: Simplify right side
    669,940.90x = 336,544,257,831.85
  5. Step 5: Solve for x
    x = 336,544,257,831.85/669,940.90
  6. Step 6: Final answer
    x = 502,349.18

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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.