Finding the Fourth Proportional to 1,128,129.36, 1,688,240.28 and 808,632.96
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Solution
The fourth proportional to 1,128,129.36, 1,688,240.28 and 808,632.96 is: 1,210,115.42
Step by Step Solution
- Step 1: Write the proportion equation
1,128,129.36 : 1,688,240.28 = 808,632.96 : x - Step 2: Convert to fraction form
1,128,129.36/1,688,240.28 = 808,632.96/x - Step 3: Cross multiply
1,128,129.36x = 1,688,240.28 × 808,632.96 - Step 4: Simplify right side
1,128,129.36x = 1,365,166,734,807.63 - Step 5: Solve for x
x = 1,365,166,734,807.63/1,128,129.36 - Step 6: Final answer
x = 1,210,115.42
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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.