Finding the Fourth Proportional to 1,129,730.76, 1,693,280.30 and 419,305.68
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Solution
The fourth proportional to 1,129,730.76, 1,693,280.30 and 419,305.68 is: 628,470.14
Step by Step Solution
- Step 1: Write the proportion equation
1,129,730.76 : 1,693,280.30 = 419,305.68 : x - Step 2: Convert to fraction form
1,129,730.76/1,693,280.30 = 419,305.68/x - Step 3: Cross multiply
1,129,730.76x = 1,693,280.30 × 419,305.68 - Step 4: Simplify right side
1,129,730.76x = 710,002,045,525.58 - Step 5: Solve for x
x = 710,002,045,525.58/1,129,730.76 - Step 6: Final answer
x = 628,470.14
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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.