Finding the Fourth Proportional to 960,081.19, 1,440,116.55 and 391,460.08
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Solution
The fourth proportional to 960,081.19, 1,440,116.55 and 391,460.08 is: 587,187.99
Step by Step Solution
- Step 1: Write the proportion equation
960,081.19 : 1,440,116.55 = 391,460.08 : x - Step 2: Convert to fraction form
960,081.19/1,440,116.55 = 391,460.08/x - Step 3: Cross multiply
960,081.19x = 1,440,116.55 × 391,460.08 - Step 4: Simplify right side
960,081.19x = 563,748,139,872.32 - Step 5: Solve for x
x = 563,748,139,872.32/960,081.19 - Step 6: Final answer
x = 587,187.99
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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.