Finding the Fourth Proportional to 724,268.62, 999,490.62 and 401,978.62
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Solution
The fourth proportional to 724,268.62, 999,490.62 and 401,978.62 is: 554,730.45
Step by Step Solution
- Step 1: Write the proportion equation
724,268.62 : 999,490.62 = 401,978.62 : x - Step 2: Convert to fraction form
724,268.62/999,490.62 = 401,978.62/x - Step 3: Cross multiply
724,268.62x = 999,490.62 × 401,978.62 - Step 4: Simplify right side
724,268.62x = 401,773,860,130.54 - Step 5: Solve for x
x = 401,773,860,130.54/724,268.62 - Step 6: Final answer
x = 554,730.45
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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.