Finding the Fourth Proportional to 528,998.18, 730,515.50 and 368,292.56
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Solution
The fourth proportional to 528,998.18, 730,515.50 and 368,292.56 is: 508,590.45
Step by Step Solution
- Step 1: Write the proportion equation
528,998.18 : 730,515.50 = 368,292.56 : x - Step 2: Convert to fraction form
528,998.18/730,515.50 = 368,292.56/x - Step 3: Cross multiply
528,998.18x = 730,515.50 × 368,292.56 - Step 4: Simplify right side
528,998.18x = 269,043,418,120.64 - Step 5: Solve for x
x = 269,043,418,120.64/528,998.18 - Step 6: Final answer
x = 508,590.45
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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.