Finding the Fourth Proportional to 914,462.18, 1,261,978.08 and 521,987.12
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Solution
The fourth proportional to 914,462.18, 1,261,978.08 and 521,987.12 is: 720,353.80
Step by Step Solution
- Step 1: Write the proportion equation
914,462.18 : 1,261,978.08 = 521,987.12 : x - Step 2: Convert to fraction form
914,462.18/1,261,978.08 = 521,987.12/x - Step 3: Cross multiply
914,462.18x = 1,261,978.08 × 521,987.12 - Step 4: Simplify right side
914,462.18x = 658,736,303,482.33 - Step 5: Solve for x
x = 658,736,303,482.33/914,462.18 - Step 6: Final answer
x = 720,353.80
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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.