Finding the Fourth Proportional to 452,787.10, 679,203.90 and 115,830.67
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Solution
The fourth proportional to 452,787.10, 679,203.90 and 115,830.67 is: 173,751.95
Step by Step Solution
- Step 1: Write the proportion equation
452,787.10 : 679,203.90 = 115,830.67 : x - Step 2: Convert to fraction form
452,787.10/679,203.90 = 115,830.67/x - Step 3: Cross multiply
452,787.10x = 679,203.90 × 115,830.67 - Step 4: Simplify right side
452,787.10x = 78,672,642,803.61 - Step 5: Solve for x
x = 78,672,642,803.61/452,787.10 - Step 6: Final answer
x = 173,751.95
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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.