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Finding the Fourth Proportional to 610,315.70, 915,619.35 and 294,512.90

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Solution

The fourth proportional to 610,315.70, 915,619.35 and 294,512.90 is: 441,839.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,315.70 : 915,619.35 = 294,512.90 : x
  2. Step 2: Convert to fraction form
    610,315.70/915,619.35 = 294,512.90/x
  3. Step 3: Cross multiply
    610,315.70x = 915,619.35 × 294,512.90
  4. Step 4: Simplify right side
    610,315.70x = 269,661,710,064.62
  5. Step 5: Solve for x
    x = 269,661,710,064.62/610,315.70
  6. Step 6: Final answer
    x = 441,839.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.