Finding the Fourth Proportional to 740,721.36, 1,111,134.36 and 366,643.92
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Solution
The fourth proportional to 740,721.36, 1,111,134.36 and 366,643.92 is: 549,991.78
Step by Step Solution
- Step 1: Write the proportion equation
740,721.36 : 1,111,134.36 = 366,643.92 : x - Step 2: Convert to fraction form
740,721.36/1,111,134.36 = 366,643.92/x - Step 3: Cross multiply
740,721.36x = 1,111,134.36 × 366,643.92 - Step 4: Simplify right side
740,721.36x = 407,390,657,397.09 - Step 5: Solve for x
x = 407,390,657,397.09/740,721.36 - Step 6: Final answer
x = 549,991.78
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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.