Finding the Fourth Proportional to 573,782.71, 791,809.12 and 315,644.57
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Solution
The fourth proportional to 573,782.71, 791,809.12 and 315,644.57 is: 435,583.45
Step by Step Solution
- Step 1: Write the proportion equation
573,782.71 : 791,809.12 = 315,644.57 : x - Step 2: Convert to fraction form
573,782.71/791,809.12 = 315,644.57/x - Step 3: Cross multiply
573,782.71x = 791,809.12 × 315,644.57 - Step 4: Simplify right side
573,782.71x = 249,930,250,836.24 - Step 5: Solve for x
x = 249,930,250,836.24/573,782.71 - Step 6: Final answer
x = 435,583.45
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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.