Finding the Fourth Proportional to 542,243.80, 813,365.70 and 402,275.80
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Solution
The fourth proportional to 542,243.80, 813,365.70 and 402,275.80 is: 603,413.70
Step by Step Solution
- Step 1: Write the proportion equation
542,243.80 : 813,365.70 = 402,275.80 : x - Step 2: Convert to fraction form
542,243.80/813,365.70 = 402,275.80/x - Step 3: Cross multiply
542,243.80x = 813,365.70 × 402,275.80 - Step 4: Simplify right side
542,243.80x = 327,197,337,660.06 - Step 5: Solve for x
x = 327,197,337,660.06/542,243.80 - Step 6: Final answer
x = 603,413.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.