Finding the Fourth Proportional to 1,387,895.34, 2,081,564.12 and 489,373.68
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Solution
The fourth proportional to 1,387,895.34, 2,081,564.12 and 489,373.68 is: 733,962.18
Step by Step Solution
- Step 1: Write the proportion equation
1,387,895.34 : 2,081,564.12 = 489,373.68 : x - Step 2: Convert to fraction form
1,387,895.34/2,081,564.12 = 489,373.68/x - Step 3: Cross multiply
1,387,895.34x = 2,081,564.12 × 489,373.68 - Step 4: Simplify right side
1,387,895.34x = 1,018,662,693,560.36 - Step 5: Solve for x
x = 1,018,662,693,560.36/1,387,895.34 - Step 6: Final answer
x = 733,962.18
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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.