Finding the Fourth Proportional to 946,555.21, 1,306,239.65 and 516,835.09
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Solution
The fourth proportional to 946,555.21, 1,306,239.65 and 516,835.09 is: 713,228.85
Step by Step Solution
- Step 1: Write the proportion equation
946,555.21 : 1,306,239.65 = 516,835.09 : x - Step 2: Convert to fraction form
946,555.21/1,306,239.65 = 516,835.09/x - Step 3: Cross multiply
946,555.21x = 1,306,239.65 × 516,835.09 - Step 4: Simplify right side
946,555.21x = 675,110,484,485.14 - Step 5: Solve for x
x = 675,110,484,485.14/946,555.21 - Step 6: Final answer
x = 713,228.85
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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.