Finding the Fourth Proportional to 656,864.28, 906,472.08 and 355,058.28
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Solution
The fourth proportional to 656,864.28, 906,472.08 and 355,058.28 is: 489,980.09
Step by Step Solution
- Step 1: Write the proportion equation
656,864.28 : 906,472.08 = 355,058.28 : x - Step 2: Convert to fraction form
656,864.28/906,472.08 = 355,058.28/x - Step 3: Cross multiply
656,864.28x = 906,472.08 × 355,058.28 - Step 4: Simplify right side
656,864.28x = 321,850,417,592.82 - Step 5: Solve for x
x = 321,850,417,592.82/656,864.28 - Step 6: Final answer
x = 489,980.09
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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.