Finding the Fourth Proportional to 840,142.36, 1,159,486.34 and 513,646.94
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Solution
The fourth proportional to 840,142.36, 1,159,486.34 and 513,646.94 is: 708,887.73
Step by Step Solution
- Step 1: Write the proportion equation
840,142.36 : 1,159,486.34 = 513,646.94 : x - Step 2: Convert to fraction form
840,142.36/1,159,486.34 = 513,646.94/x - Step 3: Cross multiply
840,142.36x = 1,159,486.34 × 513,646.94 - Step 4: Simplify right side
840,142.36x = 595,566,610,512.80 - Step 5: Solve for x
x = 595,566,610,512.80/840,142.36 - Step 6: Final answer
x = 708,887.73
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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.