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Finding the Fourth Proportional to 616,687.38, 851,034.93 and 344,770.38

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Solution

The fourth proportional to 616,687.38, 851,034.93 and 344,770.38 is: 475,786.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,687.38 : 851,034.93 = 344,770.38 : x
  2. Step 2: Convert to fraction form
    616,687.38/851,034.93 = 344,770.38/x
  3. Step 3: Cross multiply
    616,687.38x = 851,034.93 × 344,770.38
  4. Step 4: Simplify right side
    616,687.38x = 293,411,636,209.37
  5. Step 5: Solve for x
    x = 293,411,636,209.37/616,687.38
  6. Step 6: Final answer
    x = 475,786.67

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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.