Finding the Fourth Proportional to 875,283.90, 1,207,856.79 and 493,389.96
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Solution
The fourth proportional to 875,283.90, 1,207,856.79 and 493,389.96 is: 680,858.42
Step by Step Solution
- Step 1: Write the proportion equation
875,283.90 : 1,207,856.79 = 493,389.96 : x - Step 2: Convert to fraction form
875,283.90/1,207,856.79 = 493,389.96/x - Step 3: Cross multiply
875,283.90x = 1,207,856.79 × 493,389.96 - Step 4: Simplify right side
875,283.90x = 595,944,413,303.83 - Step 5: Solve for x
x = 595,944,413,303.83/875,283.90 - Step 6: Final answer
x = 680,858.42
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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.