Finding the Fourth Proportional to 449,595.08, 620,433.95 and 245,641.62
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Solution
The fourth proportional to 449,595.08, 620,433.95 and 245,641.62 is: 338,981.47
Step by Step Solution
- Step 1: Write the proportion equation
449,595.08 : 620,433.95 = 245,641.62 : x - Step 2: Convert to fraction form
449,595.08/620,433.95 = 245,641.62/x - Step 3: Cross multiply
449,595.08x = 620,433.95 × 245,641.62 - Step 4: Simplify right side
449,595.08x = 152,404,399,352.79 - Step 5: Solve for x
x = 152,404,399,352.79/449,595.08 - Step 6: Final answer
x = 338,981.47
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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.