Finding the Fourth Proportional to 645,890.62, 968,838.54 and 261,646.74
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Solution
The fourth proportional to 645,890.62, 968,838.54 and 261,646.74 is: 392,471.17
Step by Step Solution
- Step 1: Write the proportion equation
645,890.62 : 968,838.54 = 261,646.74 : x - Step 2: Convert to fraction form
645,890.62/968,838.54 = 261,646.74/x - Step 3: Cross multiply
645,890.62x = 968,838.54 × 261,646.74 - Step 4: Simplify right side
645,890.62x = 253,493,444,269.13 - Step 5: Solve for x
x = 253,493,444,269.13/645,890.62 - Step 6: Final answer
x = 392,471.17
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.