Finding the Fourth Proportional to 978,041.99, 1,349,762.88 and 548,349.95
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Solution
The fourth proportional to 978,041.99, 1,349,762.88 and 548,349.95 is: 756,759.34
Step by Step Solution
- Step 1: Write the proportion equation
978,041.99 : 1,349,762.88 = 548,349.95 : x - Step 2: Convert to fraction form
978,041.99/1,349,762.88 = 548,349.95/x - Step 3: Cross multiply
978,041.99x = 1,349,762.88 × 548,349.95 - Step 4: Simplify right side
978,041.99x = 740,142,407,759.86 - Step 5: Solve for x
x = 740,142,407,759.86/978,041.99 - Step 6: Final answer
x = 756,759.34
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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.