Finding the Fourth Proportional to 918,918.96, 1,267,922.34 and 536,871.93
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Solution
The fourth proportional to 918,918.96, 1,267,922.34 and 536,871.93 is: 740,774.70
Step by Step Solution
- Step 1: Write the proportion equation
918,918.96 : 1,267,922.34 = 536,871.93 : x - Step 2: Convert to fraction form
918,918.96/1,267,922.34 = 536,871.93/x - Step 3: Cross multiply
918,918.96x = 1,267,922.34 × 536,871.93 - Step 4: Simplify right side
918,918.96x = 680,711,913,765.92 - Step 5: Solve for x
x = 680,711,913,765.92/918,918.96 - Step 6: Final answer
x = 740,774.70
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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.