Finding the Fourth Proportional to 514,945.92, 710,586.18 and 288,547.68
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Solution
The fourth proportional to 514,945.92, 710,586.18 and 288,547.68 is: 398,173.84
Step by Step Solution
- Step 1: Write the proportion equation
514,945.92 : 710,586.18 = 288,547.68 : x - Step 2: Convert to fraction form
514,945.92/710,586.18 = 288,547.68/x - Step 3: Cross multiply
514,945.92x = 710,586.18 × 288,547.68 - Step 4: Simplify right side
514,945.92x = 205,037,993,679.06 - Step 5: Solve for x
x = 205,037,993,679.06/514,945.92 - Step 6: Final answer
x = 398,173.84
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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.