Finding the Fourth Proportional to 860,173.36, 1,187,079.74 and 478,206.52
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Solution
The fourth proportional to 860,173.36, 1,187,079.74 and 478,206.52 is: 659,947.52
Step by Step Solution
- Step 1: Write the proportion equation
860,173.36 : 1,187,079.74 = 478,206.52 : x - Step 2: Convert to fraction form
860,173.36/1,187,079.74 = 478,206.52/x - Step 3: Cross multiply
860,173.36x = 1,187,079.74 × 478,206.52 - Step 4: Simplify right side
860,173.36x = 567,669,271,427.91 - Step 5: Solve for x
x = 567,669,271,427.91/860,173.36 - Step 6: Final answer
x = 659,947.52
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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.