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Finding the Fourth Proportional to 662,123.57, 913,667.31 and 371,668.57

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Solution

The fourth proportional to 662,123.57, 913,667.31 and 371,668.57 is: 512,867.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,123.57 : 913,667.31 = 371,668.57 : x
  2. Step 2: Convert to fraction form
    662,123.57/913,667.31 = 371,668.57/x
  3. Step 3: Cross multiply
    662,123.57x = 913,667.31 × 371,668.57
  4. Step 4: Simplify right side
    662,123.57x = 339,581,420,279.28
  5. Step 5: Solve for x
    x = 339,581,420,279.28/662,123.57
  6. Step 6: Final answer
    x = 512,867.14

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.