Finding the Fourth Proportional to 561,079.94, 774,295.26 and 319,378.07
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Solution
The fourth proportional to 561,079.94, 774,295.26 and 319,378.07 is: 440,744.55
Step by Step Solution
- Step 1: Write the proportion equation
561,079.94 : 774,295.26 = 319,378.07 : x - Step 2: Convert to fraction form
561,079.94/774,295.26 = 319,378.07/x - Step 3: Cross multiply
561,079.94x = 774,295.26 × 319,378.07 - Step 4: Simplify right side
561,079.94x = 247,292,921,877.47 - Step 5: Solve for x
x = 247,292,921,877.47/561,079.94 - Step 6: Final answer
x = 440,744.55
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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.