Finding the Fourth Proportional to 521,356.23, 719,304.40 and 291,879.79
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Solution
The fourth proportional to 521,356.23, 719,304.40 and 291,879.79 is: 402,700.50
Step by Step Solution
- Step 1: Write the proportion equation
521,356.23 : 719,304.40 = 291,879.79 : x - Step 2: Convert to fraction form
521,356.23/719,304.40 = 291,879.79/x - Step 3: Cross multiply
521,356.23x = 719,304.40 × 291,879.79 - Step 4: Simplify right side
521,356.23x = 209,950,415,784.67 - Step 5: Solve for x
x = 209,950,415,784.67/521,356.23 - Step 6: Final answer
x = 402,700.50
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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.