Finding the Fourth Proportional to 486,106.23, 670,726.45 and 279,334.68
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Solution
The fourth proportional to 486,106.23, 670,726.45 and 279,334.68 is: 385,424.31
Step by Step Solution
- Step 1: Write the proportion equation
486,106.23 : 670,726.45 = 279,334.68 : x - Step 2: Convert to fraction form
486,106.23/670,726.45 = 279,334.68/x - Step 3: Cross multiply
486,106.23x = 670,726.45 × 279,334.68 - Step 4: Simplify right side
486,106.23x = 187,357,157,579.95 - Step 5: Solve for x
x = 187,357,157,579.95/486,106.23 - Step 6: Final answer
x = 385,424.31
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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.