Finding the Fourth Proportional to 389,394.19, 537,607.23 and 298,575.67
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Solution
The fourth proportional to 389,394.19, 537,607.23 and 298,575.67 is: 412,220.94
Step by Step Solution
- Step 1: Write the proportion equation
389,394.19 : 537,607.23 = 298,575.67 : x - Step 2: Convert to fraction form
389,394.19/537,607.23 = 298,575.67/x - Step 3: Cross multiply
389,394.19x = 537,607.23 × 298,575.67 - Step 4: Simplify right side
389,394.19x = 160,516,437,401.22 - Step 5: Solve for x
x = 160,516,437,401.22/389,394.19 - Step 6: Final answer
x = 412,220.94
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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.