Finding the Fourth Proportional to 687,189.06, 948,288.78 and 381,262.19
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Solution
The fourth proportional to 687,189.06, 948,288.78 and 381,262.19 is: 526,123.99
Step by Step Solution
- Step 1: Write the proportion equation
687,189.06 : 948,288.78 = 381,262.19 : x - Step 2: Convert to fraction form
687,189.06/948,288.78 = 381,262.19/x - Step 3: Cross multiply
687,189.06x = 948,288.78 × 381,262.19 - Step 4: Simplify right side
687,189.06x = 361,546,652,273.78 - Step 5: Solve for x
x = 361,546,652,273.78/687,189.06 - Step 6: Final answer
x = 526,123.99
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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.