Finding the Fourth Proportional to 840,134.21, 1,159,475.13 and 513,638.81
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Solution
The fourth proportional to 840,134.21, 1,159,475.13 and 513,638.81 is: 708,876.53
Step by Step Solution
- Step 1: Write the proportion equation
840,134.21 : 1,159,475.13 = 513,638.81 : x - Step 2: Convert to fraction form
840,134.21/1,159,475.13 = 513,638.81/x - Step 3: Cross multiply
840,134.21x = 1,159,475.13 × 513,638.81 - Step 4: Simplify right side
840,134.21x = 595,551,420,200.42 - Step 5: Solve for x
x = 595,551,420,200.42/840,134.21 - Step 6: Final answer
x = 708,876.53
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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.