Finding the Fourth Proportional to 2,819,424.50, 3,890,701.70 and 1,530,237.20
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Solution
The fourth proportional to 2,819,424.50, 3,890,701.70 and 1,530,237.20 is: 2,111,670.82
Step by Step Solution
- Step 1: Write the proportion equation
2,819,424.50 : 3,890,701.70 = 1,530,237.20 : x - Step 2: Convert to fraction form
2,819,424.50/3,890,701.70 = 1,530,237.20/x - Step 3: Cross multiply
2,819,424.50x = 3,890,701.70 × 1,530,237.20 - Step 4: Simplify right side
2,819,424.50x = 5,953,696,448,338.55 - Step 5: Solve for x
x = 5,953,696,448,338.55/2,819,424.50 - Step 6: Final answer
x = 2,111,670.82
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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.