Finding the Fourth Proportional to 1,138,439.63, 1,571,048.24 and 654,995.09
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Solution
The fourth proportional to 1,138,439.63, 1,571,048.24 and 654,995.09 is: 903,894.11
Step by Step Solution
- Step 1: Write the proportion equation
1,138,439.63 : 1,571,048.24 = 654,995.09 : x - Step 2: Convert to fraction form
1,138,439.63/1,571,048.24 = 654,995.09/x - Step 3: Cross multiply
1,138,439.63x = 1,571,048.24 × 654,995.09 - Step 4: Simplify right side
1,138,439.63x = 1,029,028,884,005.79 - Step 5: Solve for x
x = 1,029,028,884,005.79/1,138,439.63 - Step 6: Final answer
x = 903,894.11
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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.