Finding the Fourth Proportional to 644,111.09, 970,690.54 and 580,149.54
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Solution
The fourth proportional to 644,111.09, 970,690.54 and 580,149.54 is: 874,298.99
Step by Step Solution
- Step 1: Write the proportion equation
644,111.09 : 970,690.54 = 580,149.54 : x - Step 2: Convert to fraction form
644,111.09/970,690.54 = 580,149.54/x - Step 3: Cross multiply
644,111.09x = 970,690.54 × 580,149.54 - Step 4: Simplify right side
644,111.09x = 563,145,668,812.98 - Step 5: Solve for x
x = 563,145,668,812.98/644,111.09 - Step 6: Final answer
x = 874,298.99
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.