Finding the Fourth Proportional to 712,883.76, 1,069,327.08 and 292,084.08
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Solution
The fourth proportional to 712,883.76, 1,069,327.08 and 292,084.08 is: 438,126.71
Step by Step Solution
- Step 1: Write the proportion equation
712,883.76 : 1,069,327.08 = 292,084.08 : x - Step 2: Convert to fraction form
712,883.76/1,069,327.08 = 292,084.08/x - Step 3: Cross multiply
712,883.76x = 1,069,327.08 × 292,084.08 - Step 4: Simplify right side
712,883.76x = 312,333,416,380.89 - Step 5: Solve for x
x = 312,333,416,380.89/712,883.76 - Step 6: Final answer
x = 438,126.71
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.