Finding the Fourth Proportional to 688,060.92, 949,525.02 and 386,257.08
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Solution
The fourth proportional to 688,060.92, 949,525.02 and 386,257.08 is: 533,035.30
Step by Step Solution
- Step 1: Write the proportion equation
688,060.92 : 949,525.02 = 386,257.08 : x - Step 2: Convert to fraction form
688,060.92/949,525.02 = 386,257.08/x - Step 3: Cross multiply
688,060.92x = 949,525.02 × 386,257.08 - Step 4: Simplify right side
688,060.92x = 366,760,761,612.14 - Step 5: Solve for x
x = 366,760,761,612.14/688,060.92 - Step 6: Final answer
x = 533,035.30
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.