Finding the Fourth Proportional to 528,652.84, 729,521.36 and 286,930.22
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Solution
The fourth proportional to 528,652.84, 729,521.36 and 286,930.22 is: 395,953.09
Step by Step Solution
- Step 1: Write the proportion equation
528,652.84 : 729,521.36 = 286,930.22 : x - Step 2: Convert to fraction form
528,652.84/729,521.36 = 286,930.22/x - Step 3: Cross multiply
528,652.84x = 729,521.36 × 286,930.22 - Step 4: Simplify right side
528,652.84x = 209,321,724,708.65 - Step 5: Solve for x
x = 209,321,724,708.65/528,652.84 - Step 6: Final answer
x = 395,953.09
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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.