Finding the Fourth Proportional to 512,985.12, 769,740.12 and 232,465.92
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Solution
The fourth proportional to 512,985.12, 769,740.12 and 232,465.92 is: 348,817.81
Step by Step Solution
- Step 1: Write the proportion equation
512,985.12 : 769,740.12 = 232,465.92 : x - Step 2: Convert to fraction form
512,985.12/769,740.12 = 232,465.92/x - Step 3: Cross multiply
512,985.12x = 769,740.12 × 232,465.92 - Step 4: Simplify right side
512,985.12x = 178,938,345,156.71 - Step 5: Solve for x
x = 178,938,345,156.71/512,985.12 - Step 6: Final answer
x = 348,817.81
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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.