Finding the Fourth Proportional to 1,778,782.05, 2,668,124.70 and 499,400.19
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Solution
The fourth proportional to 1,778,782.05, 2,668,124.70 and 499,400.19 is: 749,086.70
Step by Step Solution
- Step 1: Write the proportion equation
1,778,782.05 : 2,668,124.70 = 499,400.19 : x - Step 2: Convert to fraction form
1,778,782.05/2,668,124.70 = 499,400.19/x - Step 3: Cross multiply
1,778,782.05x = 2,668,124.70 × 499,400.19 - Step 4: Simplify right side
1,778,782.05x = 1,332,461,982,123.69 - Step 5: Solve for x
x = 1,332,461,982,123.69/1,778,782.05 - Step 6: Final answer
x = 749,086.70
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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.