Finding the Fourth Proportional to 720,740.95, 994,457.50 and 430,295.99
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Solution
The fourth proportional to 720,740.95, 994,457.50 and 430,295.99 is: 593,709.95
Step by Step Solution
- Step 1: Write the proportion equation
720,740.95 : 994,457.50 = 430,295.99 : x - Step 2: Convert to fraction form
720,740.95/994,457.50 = 430,295.99/x - Step 3: Cross multiply
720,740.95x = 994,457.50 × 430,295.99 - Step 4: Simplify right side
720,740.95x = 427,911,068,427.40 - Step 5: Solve for x
x = 427,911,068,427.40/720,740.95 - Step 6: Final answer
x = 593,709.95
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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.