Finding the Fourth Proportional to 860,144.80, 1,187,071.68 and 478,207.12
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Solution
The fourth proportional to 860,144.80, 1,187,071.68 and 478,207.12 is: 659,965.77
Step by Step Solution
- Step 1: Write the proportion equation
860,144.80 : 1,187,071.68 = 478,207.12 : x - Step 2: Convert to fraction form
860,144.80/1,187,071.68 = 478,207.12/x - Step 3: Cross multiply
860,144.80x = 1,187,071.68 × 478,207.12 - Step 4: Simplify right side
860,144.80x = 567,666,129,326.36 - Step 5: Solve for x
x = 567,666,129,326.36/860,144.80 - Step 6: Final answer
x = 659,965.77
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1.5x scale
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.