Finding the Fourth Proportional to 3,960,420.48, 5,465,390.76 and 2,149,584.48
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Solution
The fourth proportional to 3,960,420.48, 5,465,390.76 and 2,149,584.48 is: 2,966,432.28
Step by Step Solution
- Step 1: Write the proportion equation
3,960,420.48 : 5,465,390.76 = 2,149,584.48 : x - Step 2: Convert to fraction form
3,960,420.48/5,465,390.76 = 2,149,584.48/x - Step 3: Cross multiply
3,960,420.48x = 5,465,390.76 × 2,149,584.48 - Step 4: Simplify right side
3,960,420.48x = 11,748,319,154,831.40 - Step 5: Solve for x
x = 11,748,319,154,831.40/3,960,420.48 - Step 6: Final answer
x = 2,966,432.28
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1.5x scale
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.