Finding the Fourth Proportional to 1,288,181.68, 1,777,746.23 and 715,221.88
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Solution
The fourth proportional to 1,288,181.68, 1,777,746.23 and 715,221.88 is: 987,037.02
Step by Step Solution
- Step 1: Write the proportion equation
1,288,181.68 : 1,777,746.23 = 715,221.88 : x - Step 2: Convert to fraction form
1,288,181.68/1,777,746.23 = 715,221.88/x - Step 3: Cross multiply
1,288,181.68x = 1,777,746.23 × 715,221.88 - Step 4: Simplify right side
1,288,181.68x = 1,271,483,000,783.51 - Step 5: Solve for x
x = 1,271,483,000,783.51/1,288,181.68 - Step 6: Final answer
x = 987,037.02
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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.