Finding the Fourth Proportional to 843,702.36, 1,164,129.21 and 499,646.36
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Solution
The fourth proportional to 843,702.36, 1,164,129.21 and 499,646.36 is: 689,405.34
Step by Step Solution
- Step 1: Write the proportion equation
843,702.36 : 1,164,129.21 = 499,646.36 : x - Step 2: Convert to fraction form
843,702.36/1,164,129.21 = 499,646.36/x - Step 3: Cross multiply
843,702.36x = 1,164,129.21 × 499,646.36 - Step 4: Simplify right side
843,702.36x = 581,652,916,525.53 - Step 5: Solve for x
x = 581,652,916,525.53/843,702.36 - Step 6: Final answer
x = 689,405.34
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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.