Finding the Fourth Proportional to 918,887.94, 1,267,879.53 and 536,840.91
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Solution
The fourth proportional to 918,887.94, 1,267,879.53 and 536,840.91 is: 740,731.89
Step by Step Solution
- Step 1: Write the proportion equation
918,887.94 : 1,267,879.53 = 536,840.91 : x - Step 2: Convert to fraction form
918,887.94/1,267,879.53 = 536,840.91/x - Step 3: Cross multiply
918,887.94x = 1,267,879.53 × 536,840.91 - Step 4: Simplify right side
918,887.94x = 680,649,600,655.57 - Step 5: Solve for x
x = 680,649,600,655.57/918,887.94 - Step 6: Final answer
x = 740,731.89
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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.