Finding the Fourth Proportional to 686,860.96, 1,029,495.12 and 260,125.60
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Solution
The fourth proportional to 686,860.96, 1,029,495.12 and 260,125.60 is: 389,886.82
Step by Step Solution
- Step 1: Write the proportion equation
686,860.96 : 1,029,495.12 = 260,125.60 : x - Step 2: Convert to fraction form
686,860.96/1,029,495.12 = 260,125.60/x - Step 3: Cross multiply
686,860.96x = 1,029,495.12 × 260,125.60 - Step 4: Simplify right side
686,860.96x = 267,798,035,787.07 - Step 5: Solve for x
x = 267,798,035,787.07/686,860.96 - Step 6: Final answer
x = 389,886.82
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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.