Finding the Fourth Proportional to 489,403.70, 675,269.72 and 473,275.94
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Solution
The fourth proportional to 489,403.70, 675,269.72 and 473,275.94 is: 653,016.95
Step by Step Solution
- Step 1: Write the proportion equation
489,403.70 : 675,269.72 = 473,275.94 : x - Step 2: Convert to fraction form
489,403.70/675,269.72 = 473,275.94/x - Step 3: Cross multiply
489,403.70x = 675,269.72 × 473,275.94 - Step 4: Simplify right side
489,403.70x = 319,588,911,486.54 - Step 5: Solve for x
x = 319,588,911,486.54/489,403.70 - Step 6: Final answer
x = 653,016.95
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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.