Finding the Fourth Proportional to 879,058.17, 1,319,663.88 and 579,789.09
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Solution
The fourth proportional to 879,058.17, 1,319,663.88 and 579,789.09 is: 870,393.73
Step by Step Solution
- Step 1: Write the proportion equation
879,058.17 : 1,319,663.88 = 579,789.09 : x - Step 2: Convert to fraction form
879,058.17/1,319,663.88 = 579,789.09/x - Step 3: Cross multiply
879,058.17x = 1,319,663.88 × 579,789.09 - Step 4: Simplify right side
879,058.17x = 765,126,720,091.07 - Step 5: Solve for x
x = 765,126,720,091.07/879,058.17 - Step 6: Final answer
x = 870,393.73
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.