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Finding the Fourth Proportional to 702,854.35, 969,939.41 and 380,564.65

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Solution

The fourth proportional to 702,854.35, 969,939.41 and 380,564.65 is: 525,179.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,854.35 : 969,939.41 = 380,564.65 : x
  2. Step 2: Convert to fraction form
    702,854.35/969,939.41 = 380,564.65/x
  3. Step 3: Cross multiply
    702,854.35x = 969,939.41 × 380,564.65
  4. Step 4: Simplify right side
    702,854.35x = 369,124,652,087.86
  5. Step 5: Solve for x
    x = 369,124,652,087.86/702,854.35
  6. Step 6: Final answer
    x = 525,179.44

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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.