Finding the Fourth Proportional to 939,628.95, 1,296,688.79 and 509,909.08
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Solution
The fourth proportional to 939,628.95, 1,296,688.79 and 509,909.08 is: 703,674.99
Step by Step Solution
- Step 1: Write the proportion equation
939,628.95 : 1,296,688.79 = 509,909.08 : x - Step 2: Convert to fraction form
939,628.95/1,296,688.79 = 509,909.08/x - Step 3: Cross multiply
939,628.95x = 1,296,688.79 × 509,909.08 - Step 4: Simplify right side
939,628.95x = 661,193,387,955.21 - Step 5: Solve for x
x = 661,193,387,955.21/939,628.95 - Step 6: Final answer
x = 703,674.99
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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.