Finding the Fourth Proportional to 2,578,430.32, 3,553,729.81 and 1,888,636.70
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Solution
The fourth proportional to 2,578,430.32, 3,553,729.81 and 1,888,636.70 is: 2,603,019.55
Step by Step Solution
- Step 1: Write the proportion equation
2,578,430.32 : 3,553,729.81 = 1,888,636.70 : x - Step 2: Convert to fraction form
2,578,430.32/3,553,729.81 = 1,888,636.70/x - Step 3: Cross multiply
2,578,430.32x = 3,553,729.81 × 1,888,636.70 - Step 4: Simplify right side
2,578,430.32x = 6,711,704,545,212.76 - Step 5: Solve for x
x = 6,711,704,545,212.76/2,578,430.32 - Step 6: Final answer
x = 2,603,019.55
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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.