Finding the Fourth Proportional to 742,688.19, 1,112,586.79 and 547,586.07
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Solution
The fourth proportional to 742,688.19, 1,112,586.79 and 547,586.07 is: 820,313.34
Step by Step Solution
- Step 1: Write the proportion equation
742,688.19 : 1,112,586.79 = 547,586.07 : x - Step 2: Convert to fraction form
742,688.19/1,112,586.79 = 547,586.07/x - Step 3: Cross multiply
742,688.19x = 1,112,586.79 × 547,586.07 - Step 4: Simplify right side
742,688.19x = 609,237,029,613.87 - Step 5: Solve for x
x = 609,237,029,613.87/742,688.19 - Step 6: Final answer
x = 820,313.34
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.