Finding the Fourth Proportional to 528,262.84, 728,998.36 and 286,544.80
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Solution
The fourth proportional to 528,262.84, 728,998.36 and 286,544.80 is: 395,429.46
Step by Step Solution
- Step 1: Write the proportion equation
528,262.84 : 728,998.36 = 286,544.80 : x - Step 2: Convert to fraction form
528,262.84/728,998.36 = 286,544.80/x - Step 3: Cross multiply
528,262.84x = 728,998.36 × 286,544.80 - Step 4: Simplify right side
528,262.84x = 208,890,689,266.53 - Step 5: Solve for x
x = 208,890,689,266.53/528,262.84 - Step 6: Final answer
x = 395,429.46
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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.