Finding the Fourth Proportional to 939,290.84, 1,296,221.87 and 509,570.92
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Solution
The fourth proportional to 939,290.84, 1,296,221.87 and 509,570.92 is: 703,208.15
Step by Step Solution
- Step 1: Write the proportion equation
939,290.84 : 1,296,221.87 = 509,570.92 : x - Step 2: Convert to fraction form
939,290.84/1,296,221.87 = 509,570.92/x - Step 3: Cross multiply
939,290.84x = 1,296,221.87 × 509,570.92 - Step 4: Simplify right side
939,290.84x = 660,516,973,714.23 - Step 5: Solve for x
x = 660,516,973,714.23/939,290.84 - Step 6: Final answer
x = 703,208.15
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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.