Finding the Fourth Proportional to 1,115,381.78, 1,672,332.99 and 405,325.46
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Solution
The fourth proportional to 1,115,381.78, 1,672,332.99 and 405,325.46 is: 607,719.39
Step by Step Solution
- Step 1: Write the proportion equation
1,115,381.78 : 1,672,332.99 = 405,325.46 : x - Step 2: Convert to fraction form
1,115,381.78/1,672,332.99 = 405,325.46/x - Step 3: Cross multiply
1,115,381.78x = 1,672,332.99 × 405,325.46 - Step 4: Simplify right side
1,115,381.78x = 677,839,138,444.93 - Step 5: Solve for x
x = 677,839,138,444.93/1,115,381.78 - Step 6: Final answer
x = 607,719.39
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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.