Finding the Fourth Proportional to 715,774.00, 987,787.03 and 389,108.99
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Solution
The fourth proportional to 715,774.00, 987,787.03 and 389,108.99 is: 536,980.68
Step by Step Solution
- Step 1: Write the proportion equation
715,774.00 : 987,787.03 = 389,108.99 : x - Step 2: Convert to fraction form
715,774.00/987,787.03 = 389,108.99/x - Step 3: Cross multiply
715,774.00x = 987,787.03 × 389,108.99 - Step 4: Simplify right side
715,774.00x = 384,356,811,932.15 - Step 5: Solve for x
x = 384,356,811,932.15/715,774.00 - Step 6: Final answer
x = 536,980.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.