Finding the Fourth Proportional to 4,212,728.91, 6,319,355.94 and 1,688,056.11
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Solution
The fourth proportional to 4,212,728.91, 6,319,355.94 and 1,688,056.11 is: 2,532,189.38
Step by Step Solution
- Step 1: Write the proportion equation
4,212,728.91 : 6,319,355.94 = 1,688,056.11 : x - Step 2: Convert to fraction form
4,212,728.91/6,319,355.94 = 1,688,056.11/x - Step 3: Cross multiply
4,212,728.91x = 6,319,355.94 × 1,688,056.11 - Step 4: Simplify right side
4,212,728.91x = 10,667,427,405,781.79 - Step 5: Solve for x
x = 10,667,427,405,781.79/4,212,728.91 - Step 6: Final answer
x = 2,532,189.38
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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.