Finding the Fourth Proportional to 1,430,215.92, 1,973,600.64 and 785,663.28
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Solution
The fourth proportional to 1,430,215.92, 1,973,600.64 and 785,663.28 is: 1,084,161.86
Step by Step Solution
- Step 1: Write the proportion equation
1,430,215.92 : 1,973,600.64 = 785,663.28 : x - Step 2: Convert to fraction form
1,430,215.92/1,973,600.64 = 785,663.28/x - Step 3: Cross multiply
1,430,215.92x = 1,973,600.64 × 785,663.28 - Step 4: Simplify right side
1,430,215.92x = 1,550,585,552,232.50 - Step 5: Solve for x
x = 1,550,585,552,232.50/1,430,215.92 - Step 6: Final answer
x = 1,084,161.86
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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.