Finding the Fourth Proportional to 528,652.68, 729,521.14 and 286,930.07
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Solution
The fourth proportional to 528,652.68, 729,521.14 and 286,930.07 is: 395,952.88
Step by Step Solution
- Step 1: Write the proportion equation
528,652.68 : 729,521.14 = 286,930.07 : x - Step 2: Convert to fraction form
528,652.68/729,521.14 = 286,930.07/x - Step 3: Cross multiply
528,652.68x = 729,521.14 × 286,930.07 - Step 4: Simplify right side
528,652.68x = 209,321,551,766.68 - Step 5: Solve for x
x = 209,321,551,766.68/528,652.68 - Step 6: Final answer
x = 395,952.88
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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.