Finding the Fourth Proportional to 749,352.20, 1,124,028.30 and 699,585.80
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Solution
The fourth proportional to 749,352.20, 1,124,028.30 and 699,585.80 is: 1,049,378.70
Step by Step Solution
- Step 1: Write the proportion equation
749,352.20 : 1,124,028.30 = 699,585.80 : x - Step 2: Convert to fraction form
749,352.20/1,124,028.30 = 699,585.80/x - Step 3: Cross multiply
749,352.20x = 1,124,028.30 × 699,585.80 - Step 4: Simplify right side
749,352.20x = 786,354,237,478.14 - Step 5: Solve for x
x = 786,354,237,478.14/749,352.20 - Step 6: Final answer
x = 1,049,378.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.