Finding the Fourth Proportional to 625,356.79, 862,675.45 and 395,526.98
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Solution
The fourth proportional to 625,356.79, 862,675.45 and 395,526.98 is: 545,626.79
Step by Step Solution
- Step 1: Write the proportion equation
625,356.79 : 862,675.45 = 395,526.98 : x - Step 2: Convert to fraction form
625,356.79/862,675.45 = 395,526.98/x - Step 3: Cross multiply
625,356.79x = 862,675.45 × 395,526.98 - Step 4: Simplify right side
625,356.79x = 341,211,416,626.51 - Step 5: Solve for x
x = 341,211,416,626.51/625,356.79 - Step 6: Final answer
x = 545,626.79
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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.