Finding the Fourth Proportional to 1,125,439.12, 1,688,325.56 and 326,727.28
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Solution
The fourth proportional to 1,125,439.12, 1,688,325.56 and 326,727.28 is: 490,139.37
Step by Step Solution
- Step 1: Write the proportion equation
1,125,439.12 : 1,688,325.56 = 326,727.28 : x - Step 2: Convert to fraction form
1,125,439.12/1,688,325.56 = 326,727.28/x - Step 3: Cross multiply
1,125,439.12x = 1,688,325.56 × 326,727.28 - Step 4: Simplify right side
1,125,439.12x = 551,622,017,973.28 - Step 5: Solve for x
x = 551,622,017,973.28/1,125,439.12 - Step 6: Final answer
x = 490,139.37
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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.