Finding the Fourth Proportional to 840,972.96, 1,160,537.76 and 478,395.84
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Solution
The fourth proportional to 840,972.96, 1,160,537.76 and 478,395.84 is: 660,183.46
Step by Step Solution
- Step 1: Write the proportion equation
840,972.96 : 1,160,537.76 = 478,395.84 : x - Step 2: Convert to fraction form
840,972.96/1,160,537.76 = 478,395.84/x - Step 3: Cross multiply
840,972.96x = 1,160,537.76 × 478,395.84 - Step 4: Simplify right side
840,972.96x = 555,196,436,546.92 - Step 5: Solve for x
x = 555,196,436,546.92/840,972.96 - Step 6: Final answer
x = 660,183.46
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1.5x scale
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.