Finding the Fourth Proportional to 449,595.16, 620,434.08 and 245,641.70
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Solution
The fourth proportional to 449,595.16, 620,434.08 and 245,641.70 is: 338,981.59
Step by Step Solution
- Step 1: Write the proportion equation
449,595.16 : 620,434.08 = 245,641.70 : x - Step 2: Convert to fraction form
449,595.16/620,434.08 = 245,641.70/x - Step 3: Cross multiply
449,595.16x = 620,434.08 × 245,641.70 - Step 4: Simplify right side
449,595.16x = 152,404,482,149.14 - Step 5: Solve for x
x = 152,404,482,149.14/449,595.16 - Step 6: Final answer
x = 338,981.59
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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.