Finding the Fourth Proportional to 717,100.96, 990,487.98 and 520,553.75
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Solution
The fourth proportional to 717,100.96, 990,487.98 and 520,553.75 is: 719,009.26
Step by Step Solution
- Step 1: Write the proportion equation
717,100.96 : 990,487.98 = 520,553.75 : x - Step 2: Convert to fraction form
717,100.96/990,487.98 = 520,553.75/x - Step 3: Cross multiply
717,100.96x = 990,487.98 × 520,553.75 - Step 4: Simplify right side
717,100.96x = 515,602,232,318.93 - Step 5: Solve for x
x = 515,602,232,318.93/717,100.96 - Step 6: Final answer
x = 719,009.26
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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.