Finding the Fourth Proportional to 515,927.94, 711,970.44 and 286,473.42
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Solution
The fourth proportional to 515,927.94, 711,970.44 and 286,473.42 is: 395,327.70
Step by Step Solution
- Step 1: Write the proportion equation
515,927.94 : 711,970.44 = 286,473.42 : x - Step 2: Convert to fraction form
515,927.94/711,970.44 = 286,473.42/x - Step 3: Cross multiply
515,927.94x = 711,970.44 × 286,473.42 - Step 4: Simplify right side
515,927.94x = 203,960,606,885.71 - Step 5: Solve for x
x = 203,960,606,885.71/515,927.94 - Step 6: Final answer
x = 395,327.70
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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.