Finding the Fourth Proportional to 1,087,978.68, 1,621,032.96 and 1,026,861.75
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Solution
The fourth proportional to 1,087,978.68, 1,621,032.96 and 1,026,861.75 is: 1,529,971.84
Step by Step Solution
- Step 1: Write the proportion equation
1,087,978.68 : 1,621,032.96 = 1,026,861.75 : x - Step 2: Convert to fraction form
1,087,978.68/1,621,032.96 = 1,026,861.75/x - Step 3: Cross multiply
1,087,978.68x = 1,621,032.96 × 1,026,861.75 - Step 4: Simplify right side
1,087,978.68x = 1,664,576,742,113.28 - Step 5: Solve for x
x = 1,664,576,742,113.28/1,087,978.68 - Step 6: Final answer
x = 1,529,971.84
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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.