Finding the Fourth Proportional to 3,415,440.90, 4,710,047.70 and 2,236,280.18
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Solution
The fourth proportional to 3,415,440.90, 4,710,047.70 and 2,236,280.18 is: 3,083,931.66
Step by Step Solution
- Step 1: Write the proportion equation
3,415,440.90 : 4,710,047.70 = 2,236,280.18 : x - Step 2: Convert to fraction form
3,415,440.90/4,710,047.70 = 2,236,280.18/x - Step 3: Cross multiply
3,415,440.90x = 4,710,047.70 × 2,236,280.18 - Step 4: Simplify right side
3,415,440.90x = 10,532,986,318,364.59 - Step 5: Solve for x
x = 10,532,986,318,364.59/3,415,440.90 - Step 6: Final answer
x = 3,083,931.66
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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.