Finding the Fourth Proportional to 753,402.48, 1,039,968.36 and 498,835.68
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Solution
The fourth proportional to 753,402.48, 1,039,968.36 and 498,835.68 is: 688,573.95
Step by Step Solution
- Step 1: Write the proportion equation
753,402.48 : 1,039,968.36 = 498,835.68 : x - Step 2: Convert to fraction form
753,402.48/1,039,968.36 = 498,835.68/x - Step 3: Cross multiply
753,402.48x = 1,039,968.36 × 498,835.68 - Step 4: Simplify right side
753,402.48x = 518,773,324,039.09 - Step 5: Solve for x
x = 518,773,324,039.09/753,402.48 - Step 6: Final answer
x = 688,573.95
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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.