Finding the Fourth Proportional to 860,426.68, 1,187,389.82 and 478,445.26
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Solution
The fourth proportional to 860,426.68, 1,187,389.82 and 478,445.26 is: 660,255.02
Step by Step Solution
- Step 1: Write the proportion equation
860,426.68 : 1,187,389.82 = 478,445.26 : x - Step 2: Convert to fraction form
860,426.68/1,187,389.82 = 478,445.26/x - Step 3: Cross multiply
860,426.68x = 1,187,389.82 × 478,445.26 - Step 4: Simplify right side
860,426.68x = 568,101,031,151.25 - Step 5: Solve for x
x = 568,101,031,151.25/860,426.68 - Step 6: Final answer
x = 660,255.02
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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.