Finding the Fourth Proportional to 463,639.80, 695,459.70 and 432,535.80
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Solution
The fourth proportional to 463,639.80, 695,459.70 and 432,535.80 is: 648,803.70
Step by Step Solution
- Step 1: Write the proportion equation
463,639.80 : 695,459.70 = 432,535.80 : x - Step 2: Convert to fraction form
463,639.80/695,459.70 = 432,535.80/x - Step 3: Cross multiply
463,639.80x = 695,459.70 × 432,535.80 - Step 4: Simplify right side
463,639.80x = 300,811,217,707.26 - Step 5: Solve for x
x = 300,811,217,707.26/463,639.80 - Step 6: Final answer
x = 648,803.70
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1.5x scale
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.