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Finding the Fourth Proportional to 610,738.38, 915,511.86 and 290,804.27

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Solution

The fourth proportional to 610,738.38, 915,511.86 and 290,804.27 is: 435,922.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,738.38 : 915,511.86 = 290,804.27 : x
  2. Step 2: Convert to fraction form
    610,738.38/915,511.86 = 290,804.27/x
  3. Step 3: Cross multiply
    610,738.38x = 915,511.86 × 290,804.27
  4. Step 4: Simplify right side
    610,738.38x = 266,234,753,546.08
  5. Step 5: Solve for x
    x = 266,234,753,546.08/610,738.38
  6. Step 6: Final answer
    x = 435,922.75

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1.5x scale

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.