Finding the Fourth Proportional to 564,063.75, 778,407.98 and 309,415.55
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Solution
The fourth proportional to 564,063.75, 778,407.98 and 309,415.55 is: 426,993.45
Step by Step Solution
- Step 1: Write the proportion equation
564,063.75 : 778,407.98 = 309,415.55 : x - Step 2: Convert to fraction form
564,063.75/778,407.98 = 309,415.55/x - Step 3: Cross multiply
564,063.75x = 778,407.98 × 309,415.55 - Step 4: Simplify right side
564,063.75x = 240,851,527,816.97 - Step 5: Solve for x
x = 240,851,527,816.97/564,063.75 - Step 6: Final answer
x = 426,993.45
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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.