Finding the Fourth Proportional to 673,605.40, 929,677.62 and 419,038.60
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Solution
The fourth proportional to 673,605.40, 929,677.62 and 419,038.60 is: 578,336.82
Step by Step Solution
- Step 1: Write the proportion equation
673,605.40 : 929,677.62 = 419,038.60 : x - Step 2: Convert to fraction form
673,605.40/929,677.62 = 419,038.60/x - Step 3: Cross multiply
673,605.40x = 929,677.62 × 419,038.60 - Step 4: Simplify right side
673,605.40x = 389,570,808,336.13 - Step 5: Solve for x
x = 389,570,808,336.13/673,605.40 - Step 6: Final answer
x = 578,336.82
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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.