Finding the Fourth Proportional to 722,358.12, 996,863.04 and 400,073.70
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Solution
The fourth proportional to 722,358.12, 996,863.04 and 400,073.70 is: 552,106.60
Step by Step Solution
- Step 1: Write the proportion equation
722,358.12 : 996,863.04 = 400,073.70 : x - Step 2: Convert to fraction form
722,358.12/996,863.04 = 400,073.70/x - Step 3: Cross multiply
722,358.12x = 996,863.04 × 400,073.70 - Step 4: Simplify right side
722,358.12x = 398,818,684,806.05 - Step 5: Solve for x
x = 398,818,684,806.05/722,358.12 - Step 6: Final answer
x = 552,106.60
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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.