Finding the Fourth Proportional to 724,422.28, 999,652.70 and 402,106.98
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Solution
The fourth proportional to 724,422.28, 999,652.70 and 402,106.98 is: 554,879.85
Step by Step Solution
- Step 1: Write the proportion equation
724,422.28 : 999,652.70 = 402,106.98 : x - Step 2: Convert to fraction form
724,422.28/999,652.70 = 402,106.98/x - Step 3: Cross multiply
724,422.28x = 999,652.70 × 402,106.98 - Step 4: Simplify right side
724,422.28x = 401,967,328,245.85 - Step 5: Solve for x
x = 401,967,328,245.85/724,422.28 - Step 6: Final answer
x = 554,879.85
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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.