Finding the Fourth Proportional to 985,048.95, 1,478,143.18 and 416,393.26
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Solution
The fourth proportional to 985,048.95, 1,478,143.18 and 416,393.26 is: 624,830.73
Step by Step Solution
- Step 1: Write the proportion equation
985,048.95 : 1,478,143.18 = 416,393.26 : x - Step 2: Convert to fraction form
985,048.95/1,478,143.18 = 416,393.26/x - Step 3: Cross multiply
985,048.95x = 1,478,143.18 × 416,393.26 - Step 4: Simplify right side
985,048.95x = 615,488,854,292.10 - Step 5: Solve for x
x = 615,488,854,292.10/985,048.95 - Step 6: Final answer
x = 624,830.73
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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.