Finding the Fourth Proportional to 3,886,482.20, 5,830,470.53 and 1,490,139.95
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Solution
The fourth proportional to 3,886,482.20, 5,830,470.53 and 1,490,139.95 is: 2,235,496.42
Step by Step Solution
- Step 1: Write the proportion equation
3,886,482.20 : 5,830,470.53 = 1,490,139.95 : x - Step 2: Convert to fraction form
3,886,482.20/5,830,470.53 = 1,490,139.95/x - Step 3: Cross multiply
3,886,482.20x = 5,830,470.53 × 1,490,139.95 - Step 4: Simplify right side
3,886,482.20x = 8,688,217,038,623.67 - Step 5: Solve for x
x = 8,688,217,038,623.67/3,886,482.20 - Step 6: Final answer
x = 2,235,496.42
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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.