Finding the Fourth Proportional to 573,138.20, 859,707.30 and 307,417.70
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Solution
The fourth proportional to 573,138.20, 859,707.30 and 307,417.70 is: 461,126.55
Step by Step Solution
- Step 1: Write the proportion equation
573,138.20 : 859,707.30 = 307,417.70 : x - Step 2: Convert to fraction form
573,138.20/859,707.30 = 307,417.70/x - Step 3: Cross multiply
573,138.20x = 859,707.30 × 307,417.70 - Step 4: Simplify right side
573,138.20x = 264,289,240,839.21 - Step 5: Solve for x
x = 264,289,240,839.21/573,138.20 - Step 6: Final answer
x = 461,126.55
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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.