Finding the Fourth Proportional to 1,288,353.60, 1,777,972.68 and 715,403.34
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Solution
The fourth proportional to 1,288,353.60, 1,777,972.68 and 715,403.34 is: 987,281.44
Step by Step Solution
- Step 1: Write the proportion equation
1,288,353.60 : 1,777,972.68 = 715,403.34 : x - Step 2: Convert to fraction form
1,288,353.60/1,777,972.68 = 715,403.34/x - Step 3: Cross multiply
1,288,353.60x = 1,777,972.68 × 715,403.34 - Step 4: Simplify right side
1,288,353.60x = 1,271,967,593,700.75 - Step 5: Solve for x
x = 1,271,967,593,700.75/1,288,353.60 - Step 6: Final answer
x = 987,281.44
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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.