Finding the Fourth Proportional to 978,039.99, 1,349,760.12 and 548,347.95
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Solution
The fourth proportional to 978,039.99, 1,349,760.12 and 548,347.95 is: 756,756.58
Step by Step Solution
- Step 1: Write the proportion equation
978,039.99 : 1,349,760.12 = 548,347.95 : x - Step 2: Convert to fraction form
978,039.99/1,349,760.12 = 548,347.95/x - Step 3: Cross multiply
978,039.99x = 1,349,760.12 × 548,347.95 - Step 4: Simplify right side
978,039.99x = 740,138,194,793.75 - Step 5: Solve for x
x = 740,138,194,793.75/978,039.99 - Step 6: Final answer
x = 756,756.58
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.