Finding the Fourth Proportional to 686,348.98, 1,029,652.81 and 260,012.50
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Solution
The fourth proportional to 686,348.98, 1,029,652.81 and 260,012.50 is: 390,067.75
Step by Step Solution
- Step 1: Write the proportion equation
686,348.98 : 1,029,652.81 = 260,012.50 : x - Step 2: Convert to fraction form
686,348.98/1,029,652.81 = 260,012.50/x - Step 3: Cross multiply
686,348.98x = 1,029,652.81 × 260,012.50 - Step 4: Simplify right side
686,348.98x = 267,722,601,260.13 - Step 5: Solve for x
x = 267,722,601,260.13/686,348.98 - Step 6: Final answer
x = 390,067.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.