Finding the Fourth Proportional to 861,377.30, 1,292,184.16 and 292,605.70
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Solution
The fourth proportional to 861,377.30, 1,292,184.16 and 292,605.70 is: 438,948.71
Step by Step Solution
- Step 1: Write the proportion equation
861,377.30 : 1,292,184.16 = 292,605.70 : x - Step 2: Convert to fraction form
861,377.30/1,292,184.16 = 292,605.70/x - Step 3: Cross multiply
861,377.30x = 1,292,184.16 × 292,605.70 - Step 4: Simplify right side
861,377.30x = 378,100,450,665.71 - Step 5: Solve for x
x = 378,100,450,665.71/861,377.30 - Step 6: Final answer
x = 438,948.71
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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.