Finding the Fourth Proportional to 631,968.48, 872,130.24 and 377,272.08
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Solution
The fourth proportional to 631,968.48, 872,130.24 and 377,272.08 is: 520,643.67
Step by Step Solution
- Step 1: Write the proportion equation
631,968.48 : 872,130.24 = 377,272.08 : x - Step 2: Convert to fraction form
631,968.48/872,130.24 = 377,272.08/x - Step 3: Cross multiply
631,968.48x = 872,130.24 × 377,272.08 - Step 4: Simplify right side
631,968.48x = 329,030,389,675.70 - Step 5: Solve for x
x = 329,030,389,675.70/631,968.48 - Step 6: Final answer
x = 520,643.67
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1.5x scale
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.