Finding the Fourth Proportional to 1,396,390.60, 2,094,585.90 and 686,271.70
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Solution
The fourth proportional to 1,396,390.60, 2,094,585.90 and 686,271.70 is: 1,029,407.55
Step by Step Solution
- Step 1: Write the proportion equation
1,396,390.60 : 2,094,585.90 = 686,271.70 : x - Step 2: Convert to fraction form
1,396,390.60/2,094,585.90 = 686,271.70/x - Step 3: Cross multiply
1,396,390.60x = 2,094,585.90 × 686,271.70 - Step 4: Simplify right side
1,396,390.60x = 1,437,455,026,389.03 - Step 5: Solve for x
x = 1,437,455,026,389.03/1,396,390.60 - Step 6: Final answer
x = 1,029,407.55
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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.