Finding the Fourth Proportional to 515,623.95, 711,691.84 and 352,346.55
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Solution
The fourth proportional to 515,623.95, 711,691.84 and 352,346.55 is: 486,327.61
Step by Step Solution
- Step 1: Write the proportion equation
515,623.95 : 711,691.84 = 352,346.55 : x - Step 2: Convert to fraction form
515,623.95/711,691.84 = 352,346.55/x - Step 3: Cross multiply
515,623.95x = 711,691.84 × 352,346.55 - Step 4: Simplify right side
515,623.95x = 250,762,162,258.74 - Step 5: Solve for x
x = 250,762,162,258.74/515,623.95 - Step 6: Final answer
x = 486,327.61
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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.