Finding the Fourth Proportional to 528,685.59, 729,566.53 and 286,962.99
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Solution
The fourth proportional to 528,685.59, 729,566.53 and 286,962.99 is: 395,998.30
Step by Step Solution
- Step 1: Write the proportion equation
528,685.59 : 729,566.53 = 286,962.99 : x - Step 2: Convert to fraction form
528,685.59/729,566.53 = 286,962.99/x - Step 3: Cross multiply
528,685.59x = 729,566.53 × 286,962.99 - Step 4: Simplify right side
528,685.59x = 209,358,592,852.73 - Step 5: Solve for x
x = 209,358,592,852.73/528,685.59 - Step 6: Final answer
x = 395,998.30
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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.