Finding the Fourth Proportional to 756,931.62, 1,135,781.37 and 419,910.06
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Solution
The fourth proportional to 756,931.62, 1,135,781.37 and 419,910.06 is: 630,078.08
Step by Step Solution
- Step 1: Write the proportion equation
756,931.62 : 1,135,781.37 = 419,910.06 : x - Step 2: Convert to fraction form
756,931.62/1,135,781.37 = 419,910.06/x - Step 3: Cross multiply
756,931.62x = 1,135,781.37 × 419,910.06 - Step 4: Simplify right side
756,931.62x = 476,926,023,223.58 - Step 5: Solve for x
x = 476,926,023,223.58/756,931.62 - Step 6: Final answer
x = 630,078.08
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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.