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Finding the Fourth Proportional to 662,124.69, 913,668.84 and 371,669.72

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Solution

The fourth proportional to 662,124.69, 913,668.84 and 371,669.72 is: 512,868.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,124.69 : 913,668.84 = 371,669.72 : x
  2. Step 2: Convert to fraction form
    662,124.69/913,668.84 = 371,669.72/x
  3. Step 3: Cross multiply
    662,124.69x = 913,668.84 × 371,669.72
  4. Step 4: Simplify right side
    662,124.69x = 339,583,037,367.18
  5. Step 5: Solve for x
    x = 339,583,037,367.18/662,124.69
  6. Step 6: Final answer
    x = 512,868.71

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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.