Finding the Fourth Proportional to 939,642.06, 1,296,705.99 and 509,922.19
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Solution
The fourth proportional to 939,642.06, 1,296,705.99 and 509,922.19 is: 703,692.59
Step by Step Solution
- Step 1: Write the proportion equation
939,642.06 : 1,296,705.99 = 509,922.19 : x - Step 2: Convert to fraction form
939,642.06/1,296,705.99 = 509,922.19/x - Step 3: Cross multiply
939,642.06x = 1,296,705.99 × 509,922.19 - Step 4: Simplify right side
939,642.06x = 661,219,158,206.92 - Step 5: Solve for x
x = 661,219,158,206.92/939,642.06 - Step 6: Final answer
x = 703,692.59
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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.