Finding the Fourth Proportional to 917,254.44, 1,265,768.55 and 509,382.18
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Solution
The fourth proportional to 917,254.44, 1,265,768.55 and 509,382.18 is: 702,923.76
Step by Step Solution
- Step 1: Write the proportion equation
917,254.44 : 1,265,768.55 = 509,382.18 : x - Step 2: Convert to fraction form
917,254.44/1,265,768.55 = 509,382.18/x - Step 3: Cross multiply
917,254.44x = 1,265,768.55 × 509,382.18 - Step 4: Simplify right side
917,254.44x = 644,759,943,374.44 - Step 5: Solve for x
x = 644,759,943,374.44/917,254.44 - Step 6: Final answer
x = 702,923.76
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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.