Finding the Fourth Proportional to 1,490,341.68, 2,056,619.16 and 811,263.60
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Solution
The fourth proportional to 1,490,341.68, 2,056,619.16 and 811,263.60 is: 1,119,515.27
Step by Step Solution
- Step 1: Write the proportion equation
1,490,341.68 : 2,056,619.16 = 811,263.60 : x - Step 2: Convert to fraction form
1,490,341.68/2,056,619.16 = 811,263.60/x - Step 3: Cross multiply
1,490,341.68x = 2,056,619.16 × 811,263.60 - Step 4: Simplify right side
1,490,341.68x = 1,668,460,263,570.58 - Step 5: Solve for x
x = 1,668,460,263,570.58/1,490,341.68 - Step 6: Final answer
x = 1,119,515.27
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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.