Finding the Fourth Proportional to 1,076,881.20, 1,615,307.40 and 328,930.80
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Solution
The fourth proportional to 1,076,881.20, 1,615,307.40 and 328,930.80 is: 493,391.80
Step by Step Solution
- Step 1: Write the proportion equation
1,076,881.20 : 1,615,307.40 = 328,930.80 : x - Step 2: Convert to fraction form
1,076,881.20/1,615,307.40 = 328,930.80/x - Step 3: Cross multiply
1,076,881.20x = 1,615,307.40 × 328,930.80 - Step 4: Simplify right side
1,076,881.20x = 531,324,355,327.92 - Step 5: Solve for x
x = 531,324,355,327.92/1,076,881.20 - Step 6: Final answer
x = 493,391.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.