Finding the Fourth Proportional to 399,020.84, 598,531.95 and 319,564.17
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Solution
The fourth proportional to 399,020.84, 598,531.95 and 319,564.17 is: 479,346.81
Step by Step Solution
- Step 1: Write the proportion equation
399,020.84 : 598,531.95 = 319,564.17 : x - Step 2: Convert to fraction form
399,020.84/598,531.95 = 319,564.17/x - Step 3: Cross multiply
399,020.84x = 598,531.95 × 319,564.17 - Step 4: Simplify right side
399,020.84x = 191,269,365,820.23 - Step 5: Solve for x
x = 191,269,365,820.23/399,020.84 - Step 6: Final answer
x = 479,346.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.