Finding the Fourth Proportional to 1,640,527.96, 2,258,875.74 and 1,398,266.68
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Solution
The fourth proportional to 1,640,527.96, 2,258,875.74 and 1,398,266.68 is: 1,925,301.34
Step by Step Solution
- Step 1: Write the proportion equation
1,640,527.96 : 2,258,875.74 = 1,398,266.68 : x - Step 2: Convert to fraction form
1,640,527.96/2,258,875.74 = 1,398,266.68/x - Step 3: Cross multiply
1,640,527.96x = 2,258,875.74 × 1,398,266.68 - Step 4: Simplify right side
1,640,527.96x = 3,158,510,681,502.34 - Step 5: Solve for x
x = 3,158,510,681,502.34/1,640,527.96 - Step 6: Final answer
x = 1,925,301.34
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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.