Finding the Fourth Proportional to 788,202.23, 1,087,656.46 and 515,838.71
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Solution
The fourth proportional to 788,202.23, 1,087,656.46 and 515,838.71 is: 711,816.45
Step by Step Solution
- Step 1: Write the proportion equation
788,202.23 : 1,087,656.46 = 515,838.71 : x - Step 2: Convert to fraction form
788,202.23/1,087,656.46 = 515,838.71/x - Step 3: Cross multiply
788,202.23x = 1,087,656.46 × 515,838.71 - Step 4: Simplify right side
788,202.23x = 561,055,306,679.11 - Step 5: Solve for x
x = 561,055,306,679.11/788,202.23 - Step 6: Final answer
x = 711,816.45
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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.