Finding the Fourth Proportional to 742,167.87, 1,024,193.65 and 402,636.12
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Solution
The fourth proportional to 742,167.87, 1,024,193.65 and 402,636.12 is: 555,638.92
Step by Step Solution
- Step 1: Write the proportion equation
742,167.87 : 1,024,193.65 = 402,636.12 : x - Step 2: Convert to fraction form
742,167.87/1,024,193.65 = 402,636.12/x - Step 3: Cross multiply
742,167.87x = 1,024,193.65 × 402,636.12 - Step 4: Simplify right side
742,167.87x = 412,377,357,364.64 - Step 5: Solve for x
x = 412,377,357,364.64/742,167.87 - Step 6: Final answer
x = 555,638.92
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1.5x scale
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.