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Finding the Fourth Proportional to 616,391.94, 850,618.38 and 344,459.76

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Solution

The fourth proportional to 616,391.94, 850,618.38 and 344,459.76 is: 475,353.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,391.94 : 850,618.38 = 344,459.76 : x
  2. Step 2: Convert to fraction form
    616,391.94/850,618.38 = 344,459.76/x
  3. Step 3: Cross multiply
    616,391.94x = 850,618.38 × 344,459.76
  4. Step 4: Simplify right side
    616,391.94x = 293,003,803,026.39
  5. Step 5: Solve for x
    x = 293,003,803,026.39/616,391.94
  6. Step 6: Final answer
    x = 475,353.07

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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.