Finding the Fourth Proportional to 1,128,405.24, 1,692,609.68 and 399,470.84
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Solution
The fourth proportional to 1,128,405.24, 1,692,609.68 and 399,470.84 is: 599,206.90
Step by Step Solution
- Step 1: Write the proportion equation
1,128,405.24 : 1,692,609.68 = 399,470.84 : x - Step 2: Convert to fraction form
1,128,405.24/1,692,609.68 = 399,470.84/x - Step 3: Cross multiply
1,128,405.24x = 1,692,609.68 × 399,470.84 - Step 4: Simplify right side
1,128,405.24x = 676,148,210,661.73 - Step 5: Solve for x
x = 676,148,210,661.73/1,128,405.24 - Step 6: Final answer
x = 599,206.90
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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.