Finding the Fourth Proportional to 1,170,544.17, 1,615,482.09 and 661,279.35
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Solution
The fourth proportional to 1,170,544.17, 1,615,482.09 and 661,279.35 is: 912,639.59
Step by Step Solution
- Step 1: Write the proportion equation
1,170,544.17 : 1,615,482.09 = 661,279.35 : x - Step 2: Convert to fraction form
1,170,544.17/1,615,482.09 = 661,279.35/x - Step 3: Cross multiply
1,170,544.17x = 1,615,482.09 × 661,279.35 - Step 4: Simplify right side
1,170,544.17x = 1,068,284,946,411.84 - Step 5: Solve for x
x = 1,068,284,946,411.84/1,170,544.17 - Step 6: Final answer
x = 912,639.59
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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.