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Finding the Fourth Proportional to 669,825.84, 924,098.76 and 379,370.64

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Solution

The fourth proportional to 669,825.84, 924,098.76 and 379,370.64 is: 523,383.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,825.84 : 924,098.76 = 379,370.64 : x
  2. Step 2: Convert to fraction form
    669,825.84/924,098.76 = 379,370.64/x
  3. Step 3: Cross multiply
    669,825.84x = 924,098.76 × 379,370.64
  4. Step 4: Simplify right side
    669,825.84x = 350,575,938,004.41
  5. Step 5: Solve for x
    x = 350,575,938,004.41/669,825.84
  6. Step 6: Final answer
    x = 523,383.72

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Double scale
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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.