Finding the Fourth Proportional to 776,675.44, 1,071,259.99 and 518,422.18
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Solution
The fourth proportional to 776,675.44, 1,071,259.99 and 518,422.18 is: 715,054.07
Step by Step Solution
- Step 1: Write the proportion equation
776,675.44 : 1,071,259.99 = 518,422.18 : x - Step 2: Convert to fraction form
776,675.44/1,071,259.99 = 518,422.18/x - Step 3: Cross multiply
776,675.44x = 1,071,259.99 × 518,422.18 - Step 4: Simplify right side
776,675.44x = 555,364,931,414.17 - Step 5: Solve for x
x = 555,364,931,414.17/776,675.44 - Step 6: Final answer
x = 715,054.07
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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.