Finding the Fourth Proportional to 639,747.92, 958,793.56 and 260,228.09
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Solution
The fourth proportional to 639,747.92, 958,793.56 and 260,228.09 is: 390,005.20
Step by Step Solution
- Step 1: Write the proportion equation
639,747.92 : 958,793.56 = 260,228.09 : x - Step 2: Convert to fraction form
639,747.92/958,793.56 = 260,228.09/x - Step 3: Cross multiply
639,747.92x = 958,793.56 × 260,228.09 - Step 4: Simplify right side
639,747.92x = 249,505,018,569.51 - Step 5: Solve for x
x = 249,505,018,569.51/639,747.92 - Step 6: Final answer
x = 390,005.20
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1.5x scale
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.