Finding the Fourth Proportional to 761,643.97, 1,135,656.66 and 740,718.48
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Solution
The fourth proportional to 761,643.97, 1,135,656.66 and 740,718.48 is: 1,104,455.50
Step by Step Solution
- Step 1: Write the proportion equation
761,643.97 : 1,135,656.66 = 740,718.48 : x - Step 2: Convert to fraction form
761,643.97/1,135,656.66 = 740,718.48/x - Step 3: Cross multiply
761,643.97x = 1,135,656.66 × 740,718.48 - Step 4: Simplify right side
761,643.97x = 841,201,874,997.08 - Step 5: Solve for x
x = 841,201,874,997.08/761,643.97 - Step 6: Final answer
x = 1,104,455.50
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.