Finding the Fourth Proportional to 849,276.90, 1,171,868.31 and 486,630.99
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Solution
The fourth proportional to 849,276.90, 1,171,868.31 and 486,630.99 is: 671,474.09
Step by Step Solution
- Step 1: Write the proportion equation
849,276.90 : 1,171,868.31 = 486,630.99 : x - Step 2: Convert to fraction form
849,276.90/1,171,868.31 = 486,630.99/x - Step 3: Cross multiply
849,276.90x = 1,171,868.31 × 486,630.99 - Step 4: Simplify right side
849,276.90x = 570,267,435,844.93 - Step 5: Solve for x
x = 570,267,435,844.93/849,276.90 - Step 6: Final answer
x = 671,474.09
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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.