Finding the Fourth Proportional to 918,352.38, 1,267,670.08 and 689,570.58
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Solution
The fourth proportional to 918,352.38, 1,267,670.08 and 689,570.58 is: 951,865.55
Step by Step Solution
- Step 1: Write the proportion equation
918,352.38 : 1,267,670.08 = 689,570.58 : x - Step 2: Convert to fraction form
918,352.38/1,267,670.08 = 689,570.58/x - Step 3: Cross multiply
918,352.38x = 1,267,670.08 × 689,570.58 - Step 4: Simplify right side
918,352.38x = 874,147,992,314.25 - Step 5: Solve for x
x = 874,147,992,314.25/918,352.38 - Step 6: Final answer
x = 951,865.55
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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.