Finding the Fourth Proportional to 419,276.95, 628,959.05 and 115,671.12
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Solution
The fourth proportional to 419,276.95, 628,959.05 and 115,671.12 is: 173,518.71
Step by Step Solution
- Step 1: Write the proportion equation
419,276.95 : 628,959.05 = 115,671.12 : x - Step 2: Convert to fraction form
419,276.95/628,959.05 = 115,671.12/x - Step 3: Cross multiply
419,276.95x = 628,959.05 × 115,671.12 - Step 4: Simplify right side
419,276.95x = 72,752,396,175.24 - Step 5: Solve for x
x = 72,752,396,175.24/419,276.95 - Step 6: Final answer
x = 173,518.71
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.