Finding the Fourth Proportional to 1,768,911.40, 2,651,811.90 and 1,059,221.80
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Solution
The fourth proportional to 1,768,911.40, 2,651,811.90 and 1,059,221.80 is: 1,587,901.45
Step by Step Solution
- Step 1: Write the proportion equation
1,768,911.40 : 2,651,811.90 = 1,059,221.80 : x - Step 2: Convert to fraction form
1,768,911.40/2,651,811.90 = 1,059,221.80/x - Step 3: Cross multiply
1,768,911.40x = 2,651,811.90 × 1,059,221.80 - Step 4: Simplify right side
1,768,911.40x = 2,808,856,973,979.42 - Step 5: Solve for x
x = 2,808,856,973,979.42/1,768,911.40 - Step 6: Final answer
x = 1,587,901.45
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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.