Finding the Fourth Proportional to 985,649.76, 1,478,248.65 and 275,727.96
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Solution
The fourth proportional to 985,649.76, 1,478,248.65 and 275,727.96 is: 413,528.72
Step by Step Solution
- Step 1: Write the proportion equation
985,649.76 : 1,478,248.65 = 275,727.96 : x - Step 2: Convert to fraction form
985,649.76/1,478,248.65 = 275,727.96/x - Step 3: Cross multiply
985,649.76x = 1,478,248.65 × 275,727.96 - Step 4: Simplify right side
985,649.76x = 407,594,484,637.25 - Step 5: Solve for x
x = 407,594,484,637.25/985,649.76 - Step 6: Final answer
x = 413,528.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.