Finding the Fourth Proportional to 1,009,740.87, 1,393,419.97 and 557,031.75
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Solution
The fourth proportional to 1,009,740.87, 1,393,419.97 and 557,031.75 is: 768,691.44
Step by Step Solution
- Step 1: Write the proportion equation
1,009,740.87 : 1,393,419.97 = 557,031.75 : x - Step 2: Convert to fraction form
1,009,740.87/1,393,419.97 = 557,031.75/x - Step 3: Cross multiply
1,009,740.87x = 1,393,419.97 × 557,031.75 - Step 4: Simplify right side
1,009,740.87x = 776,179,164,374.05 - Step 5: Solve for x
x = 776,179,164,374.05/1,009,740.87 - Step 6: Final answer
x = 768,691.44
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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.