Finding the Fourth Proportional to 3,129,405.68, 4,694,840.76 and 970,317.20
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Solution
The fourth proportional to 3,129,405.68, 4,694,840.76 and 970,317.20 is: 1,455,702.84
Step by Step Solution
- Step 1: Write the proportion equation
3,129,405.68 : 4,694,840.76 = 970,317.20 : x - Step 2: Convert to fraction form
3,129,405.68/4,694,840.76 = 970,317.20/x - Step 3: Cross multiply
3,129,405.68x = 4,694,840.76 × 970,317.20 - Step 4: Simplify right side
3,129,405.68x = 4,555,484,740,689.07 - Step 5: Solve for x
x = 4,555,484,740,689.07/3,129,405.68 - Step 6: Final answer
x = 1,455,702.84
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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.