Finding the Fourth Proportional to 939,120.71, 1,295,977.39 and 509,394.65
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Solution
The fourth proportional to 939,120.71, 1,295,977.39 and 509,394.65 is: 702,959.63
Step by Step Solution
- Step 1: Write the proportion equation
939,120.71 : 1,295,977.39 = 509,394.65 : x - Step 2: Convert to fraction form
939,120.71/1,295,977.39 = 509,394.65/x - Step 3: Cross multiply
939,120.71x = 1,295,977.39 × 509,394.65 - Step 4: Simplify right side
939,120.71x = 660,163,941,233.59 - Step 5: Solve for x
x = 660,163,941,233.59/939,120.71 - Step 6: Final answer
x = 702,959.63
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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.