Finding the Fourth Proportional to 708,272.05, 977,387.01 and 385,975.23
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Solution
The fourth proportional to 708,272.05, 977,387.01 and 385,975.23 is: 532,630.32
Step by Step Solution
- Step 1: Write the proportion equation
708,272.05 : 977,387.01 = 385,975.23 : x - Step 2: Convert to fraction form
708,272.05/977,387.01 = 385,975.23/x - Step 3: Cross multiply
708,272.05x = 977,387.01 × 385,975.23 - Step 4: Simplify right side
708,272.05x = 377,247,170,871.15 - Step 5: Solve for x
x = 377,247,170,871.15/708,272.05 - Step 6: Final answer
x = 532,630.32
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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.