Finding the Fourth Proportional to 712,709.60, 1,069,063.68 and 291,986.24
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Solution
The fourth proportional to 712,709.60, 1,069,063.68 and 291,986.24 is: 437,979.07
Step by Step Solution
- Step 1: Write the proportion equation
712,709.60 : 1,069,063.68 = 291,986.24 : x - Step 2: Convert to fraction form
712,709.60/1,069,063.68 = 291,986.24/x - Step 3: Cross multiply
712,709.60x = 1,069,063.68 × 291,986.24 - Step 4: Simplify right side
712,709.60x = 312,151,884,243.76 - Step 5: Solve for x
x = 312,151,884,243.76/712,709.60 - Step 6: Final answer
x = 437,979.07
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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.