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Finding the Fourth Proportional to 702,552.79, 969,512.14 and 392,459.43

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Solution

The fourth proportional to 702,552.79, 969,512.14 and 392,459.43 is: 541,588.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,552.79 : 969,512.14 = 392,459.43 : x
  2. Step 2: Convert to fraction form
    702,552.79/969,512.14 = 392,459.43/x
  3. Step 3: Cross multiply
    702,552.79x = 969,512.14 × 392,459.43
  4. Step 4: Simplify right side
    702,552.79x = 380,494,178,307.64
  5. Step 5: Solve for x
    x = 380,494,178,307.64/702,552.79
  6. Step 6: Final answer
    x = 541,588.02

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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.