Finding the Fourth Proportional to 615,933.99, 849,965.00 and 386,614.49
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Solution
The fourth proportional to 615,933.99, 849,965.00 and 386,614.49 is: 533,512.98
Step by Step Solution
- Step 1: Write the proportion equation
615,933.99 : 849,965.00 = 386,614.49 : x - Step 2: Convert to fraction form
615,933.99/849,965.00 = 386,614.49/x - Step 3: Cross multiply
615,933.99x = 849,965.00 × 386,614.49 - Step 4: Simplify right side
615,933.99x = 328,608,778,809.95 - Step 5: Solve for x
x = 328,608,778,809.95/615,933.99 - Step 6: Final answer
x = 533,512.98
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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.