Finding the Fourth Proportional to 860,268.24, 1,187,136.36 and 478,267.20
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Solution
The fourth proportional to 860,268.24, 1,187,136.36 and 478,267.20 is: 659,989.94
Step by Step Solution
- Step 1: Write the proportion equation
860,268.24 : 1,187,136.36 = 478,267.20 : x - Step 2: Convert to fraction form
860,268.24/1,187,136.36 = 478,267.20/x - Step 3: Cross multiply
860,268.24x = 1,187,136.36 × 478,267.20 - Step 4: Simplify right side
860,268.24x = 567,768,382,915.39 - Step 5: Solve for x
x = 567,768,382,915.39/860,268.24 - Step 6: Final answer
x = 659,989.94
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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.