Finding the Fourth Proportional to 1,398,043.09, 2,097,069.59 and 425,416.75
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Solution
The fourth proportional to 1,398,043.09, 2,097,069.59 and 425,416.75 is: 638,126.63
Step by Step Solution
- Step 1: Write the proportion equation
1,398,043.09 : 2,097,069.59 = 425,416.75 : x - Step 2: Convert to fraction form
1,398,043.09/2,097,069.59 = 425,416.75/x - Step 3: Cross multiply
1,398,043.09x = 2,097,069.59 × 425,416.75 - Step 4: Simplify right side
1,398,043.09x = 892,128,529,501.63 - Step 5: Solve for x
x = 892,128,529,501.63/1,398,043.09 - Step 6: Final answer
x = 638,126.63
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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.