Finding the Fourth Proportional to 819,449.34, 1,130,914.35 and 497,241.06
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Solution
The fourth proportional to 819,449.34, 1,130,914.35 and 497,241.06 is: 686,237.72
Step by Step Solution
- Step 1: Write the proportion equation
819,449.34 : 1,130,914.35 = 497,241.06 : x - Step 2: Convert to fraction form
819,449.34/1,130,914.35 = 497,241.06/x - Step 3: Cross multiply
819,449.34x = 1,130,914.35 × 497,241.06 - Step 4: Simplify right side
819,449.34x = 562,337,050,163.21 - Step 5: Solve for x
x = 562,337,050,163.21/819,449.34 - Step 6: Final answer
x = 686,237.72
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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.