Finding the Fourth Proportional to 564,779.76, 779,204.12 and 322,891.08
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Solution
The fourth proportional to 564,779.76, 779,204.12 and 322,891.08 is: 445,479.95
Step by Step Solution
- Step 1: Write the proportion equation
564,779.76 : 779,204.12 = 322,891.08 : x - Step 2: Convert to fraction form
564,779.76/779,204.12 = 322,891.08/x - Step 3: Cross multiply
564,779.76x = 779,204.12 × 322,891.08 - Step 4: Simplify right side
564,779.76x = 251,598,058,232.79 - Step 5: Solve for x
x = 251,598,058,232.79/564,779.76 - Step 6: Final answer
x = 445,479.95
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1.5x scale
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.