Finding the Fourth Proportional to 719,037.87, 992,331.80 and 413,173.67
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Solution
The fourth proportional to 719,037.87, 992,331.80 and 413,173.67 is: 570,213.88
Step by Step Solution
- Step 1: Write the proportion equation
719,037.87 : 992,331.80 = 413,173.67 : x - Step 2: Convert to fraction form
719,037.87/992,331.80 = 413,173.67/x - Step 3: Cross multiply
719,037.87x = 992,331.80 × 413,173.67 - Step 4: Simplify right side
719,037.87x = 410,005,371,663.71 - Step 5: Solve for x
x = 410,005,371,663.71/719,037.87 - Step 6: Final answer
x = 570,213.88
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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.