Finding the Fourth Proportional to 840,885.13, 1,261,721.36 and 367,508.98
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Solution
The fourth proportional to 840,885.13, 1,261,721.36 and 367,508.98 is: 551,435.52
Step by Step Solution
- Step 1: Write the proportion equation
840,885.13 : 1,261,721.36 = 367,508.98 : x - Step 2: Convert to fraction form
840,885.13/1,261,721.36 = 367,508.98/x - Step 3: Cross multiply
840,885.13x = 1,261,721.36 × 367,508.98 - Step 4: Simplify right side
840,885.13x = 463,693,930,486.50 - Step 5: Solve for x
x = 463,693,930,486.50/840,885.13 - Step 6: Final answer
x = 551,435.52
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1.5x scale
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.